131 (number)
Encyclopedia
131 is the natural number
following 130
and preceding 132
.
, the second 3-digit palindromic prime
, and also a permutable prime
with 113
and 311. It can be expressed as the sum of three consecutive primes, 131 = 41 + 43 + 47. 131 is an Eisenstein prime
with no imaginary part and real part of the form
. Because the next odd number, 133, is a semiprime
, 131 is a Chen prime
.
131 is a full reptend prime in base 10. The decimal expansion of 1/131 repeats the digits 0076335877862595419847328244274809160305343511450381679389312977099236641221374045801526717557251908396946564885496183206106870229 indefinitely.
Natural number
In mathematics, the natural numbers are the ordinary whole numbers used for counting and ordering . These purposes are related to the linguistic notions of cardinal and ordinal numbers, respectively...
following 130
130 (number)
130 is the natural number following 129 and preceding 131.-In mathematics:130 is a sphenic number. It is a noncototient since there is no answer to the equation x - φ = 130....
and preceding 132
132 (number)
132 is the natural number following 131 and preceding 133.-In mathematics:132 is the sixth Catalan number. It is a pronic number, the product of 11 and 12. As it has 12 divisors total, 132 is a refactorable number....
.
In mathematics
131 is a Sophie Germain primeSophie Germain prime
In number theory, a prime number p is a Sophie Germain prime if 2p + 1 is also prime. For example, 23 is a Sophie Germain prime because it is a prime and 2 × 23 + 1 = 47, and 47 is also a prime number...
, the second 3-digit palindromic prime
Palindromic prime
A palindromic prime is a prime number that is also a palindromic number. Palindromicity depends on the base of the numbering system and its writing conventions, while primality is independent of such concerns...
, and also a permutable prime
Permutable prime
A permutable prime is a prime number, which, in a given base, can have its digits' positions switched through any permutation and still spell a prime number. H. E...
with 113
113 (number)
113 is the natural number following 112 and preceding 114.-In mathematics:One hundred [and] thirteen is the 30th prime number, following 109 and preceding 127, a Sophie Germain prime, a Chen prime and a Proth prime as it is a prime number of the form 7 × 24 + 1...
and 311. It can be expressed as the sum of three consecutive primes, 131 = 41 + 43 + 47. 131 is an Eisenstein prime
Eisenstein prime
In mathematics, an Eisenstein prime is an Eisenstein integerz = a + b\,\omega\qquadthat is irreducible in the ring-theoretic sense: its only Eisenstein divisors are the units , a + bω itself and its associates.The associates and the complex conjugate...
with no imaginary part and real part of the form
. Because the next odd number, 133, is a semiprimeSemiprime
In mathematics, a semiprime is a natural number that is the product of two prime numbers. The first few semiprimes are 4, 6, 9, 10, 14, 15, 21, 22, 25, 26, ... ....
, 131 is a Chen prime
Chen prime
A prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes. The even number 2p + 2 therefore satisfies Chen's theorem....
.
131 is a full reptend prime in base 10. The decimal expansion of 1/131 repeats the digits 0076335877862595419847328244274809160305343511450381679389312977099236641221374045801526717557251908396946564885496183206106870229 indefinitely.
In the military
- ConvairConvairConvair was an American aircraft manufacturing company which later expanded into rockets and spacecraft. The company was formed in 1943 by the merger of Vultee Aircraft and Consolidated Aircraft, and went on to produce a number of pioneering aircraft, such as the Convair B-36 bomber, and the F-102...
C-131 SamaritanC-131 SamaritanThe Convair C-131 Samaritan was an American military transport produced from 1954 to 1956. It is the military version of the Convair CV-240.-Design and development:...
was an American military transport produced from 19541954 in aviationThis is a list of aviation-related events from 1954:-January:* January 10 – A de Havilland Comet 1, operating BOAC Flight 781, crashes into the Mediterranean Sea near Elba following fatigue failure, killing all 35 people aboard.-February:...
to 19561956 in aviationThis is a list of aviation-related events from 1956:-February:* February 18 – An engine fire breaks out on a Scottish Airlines Avro York just after takeoff from Malta International Airport, Luqa, Malta...
was a Buenaventura-class fleet oiler during World War II was a is a United States NavyUnited States NavyThe United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
Haskell-classHaskell class attack transportHaskell-class attack transports were amphibious assault ships of the United States Navy created in 1944. They were designed to transport 1,500 troops and their combat equipment, and land them on hostile shores with the ships' integral landing craft....
attack transportAttack transportAttack Transport is a United States Navy ship classification.-History:In the early 1940s, as the United States Navy expanded in response to the threat of involvement in World War II, a number of civilian passenger ships and some freighters were acquired, converted to transports and given hull...
ship during World War II was a United States NavyUnited States NavyThe United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
Wickes-classWickes class destroyerThe Wickes-class destroyers were a group of 111 destroyers built by the United States Navy in 1917-1919. Along with the 6 preceding Caldwell class and 155 subsequent Clemson-class destroyers, they formed the "flush-deck" or "four-stack" class. Only a few were completed in time to serve in World...
destroyerDestroyerIn naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller, powerful, short-range attackers. Destroyers, originally called torpedo-boat destroyers in 1892, evolved from...
was a United States NavyUnited States NavyThe United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
General G. O. Squier transport ship during World War II was a United States NavyUnited States NavyThe United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
Edsall-class destroyer escortDestroyer escortA destroyer escort is the classification for a smaller, lightly armed warship designed to be used to escort convoys of merchant marine ships, primarily of the United States Merchant Marine in World War II. It is employed primarily for anti-submarine warfare, but also provides some protection...
during World War II was an United States NavyUnited States NavyThe United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
Crater-classCrater class cargo shipCrater-class cargo ship is a category of freighter that was constructed for use by the United States Navy during World War II under Maritime Commission EC2-S-C1 type....
cargo shipCargo shipA cargo ship or freighter is any sort of ship or vessel that carries cargo, goods, and materials from one port to another. Thousands of cargo carriers ply the world's seas and oceans each year; they handle the bulk of international trade...
during World War II was a ship of the United States NavyUnited States NavyThe United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
during World War II - Strike Fighter Squadron (VFA-131VFA-131Strike Fighter Squadron 131 , also known as the "Wildcats", is a United States Navy F/A-18C Hornet fighter squadron stationed at Naval Air Station Oceana. Their radio call sign is "Cat" and their aircraft tail code is AG.-Mission:...
is a United States NavyUnited States NavyThe United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
F/A-18C Hornet fighter squadron stationed at Naval Air Station OceanaNaval Air Station OceanaNaval Air Station Oceana or NAS Oceana is a military airport located in Virginia Beach, Virginia, and is a United States Navy Master Jet Base. It is also known as Apollo Soucek Field, named after Lieutenant Apollo Soucek, a Navy Test Pilot who set the global altitude record in 1930 by flying a... - ZIL-131 is a 3.5-ton 6x6 armyArmyAn army An army An army (from Latin arma "arms, weapons" via Old French armée, "armed" (feminine), in the broadest sense, is the land-based military of a nation or state. It may also include other branches of the military such as the air force via means of aviation corps...
truck
In sports
- The 131st Belmont StakesBelmont StakesThe Belmont Stakes is an American Grade I stakes Thoroughbred horse race held every June at Belmont Park in Elmont, New York. It is a 1.5-mile horse race, open to three year old Thoroughbreds. Colts and geldings carry a weight of 126 pounds ; fillies carry 121 pounds...
was won by Lemon Drop KidLemon Drop KidLemon Drop Kid is a Champion American Thoroughbred racehorse.-Background:He is among many stakes-winning Thoroughbreds to be descended from Triple Crown winner Seattle Slew. Seattle Slew is the son of, Charming Lassie. Kingmambo was his sire, himself a son of the very important Champion sire Mr...
on June 5, 1999 - The 131st Kentucky DerbyKentucky DerbyThe Kentucky Derby is a Grade I stakes race for three-year-old Thoroughbred horses, held annually in Louisville, Kentucky, United States on the first Saturday in May, capping the two-week-long Kentucky Derby Festival. The race is one and a quarter mile at Churchill Downs. Colts and geldings carry...
was won by GiacomoGiacomoGiacomo is a Thoroughbred stallion race horse trained by John Shirreffs who is perhaps best known for winning the 2005 Kentucky Derby in 2:02.75...
on May 8, 2005
In transportation
- U.S. Route 131U.S. Route 131US Highway 131 is a north–south United States Highway, of which all but 0.67 miles of its 266.82 miles are within the state of Michigan. The highway starts in rural Indiana south of the state line as a state road connection to the Indiana Toll Road...
in MichiganMichiganMichigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....
- M-131 was a former state trunklineMichigan Highway SystemThe Michigan State Trunkline Highway System is made up of all the highways designated as Interstates, U.S. Highways and State Highways in the US state of Michigan. The system is maintained by the Michigan Department of Transportation and comprises of trunklines in all 83 counties of Michigan on...
designation replaced by U.S. Route 131U.S. Route 131US Highway 131 is a north–south United States Highway, of which all but 0.67 miles of its 266.82 miles are within the state of Michigan. The highway starts in rural Indiana south of the state line as a state road connection to the Indiana Toll Road...
and M-119M-119 (Michigan highway)The current highway was designated in 1979, replacing the former route of M-131; the routing has remained unchanged since. This section of highway had been part of M-13 on July 1, 1919, when the state trunkline highway system debuted...
- M-131 was a former state trunkline
- Route 131Quebec route 131Route 131 is a Quebec highway running from Lavaltrie to Saint-Michel-des-Saints in Lanaudière. This route, combined with Autoroute 31, provides the key route to Joliette, and then continues northward through Saint-Félix-de-Valois, Saint-Jean-de-Matha and Saint-Zénon for a distance of almost 140...
in QuebecQuebecQuebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....
, Canada - Highway 131Highway 131 (Ontario)Highway 131 was a provincially maintained highway in the Canadian province of Ontario, located in Simcoe County and the city of Barrie. The route, which connected Highway 27 with Highway 90, existed from 1984 through 1997, after which it was transferred to the responsibility of Simcoe...
was a former provincial highway in Simcoe County, OntarioSimcoe County, OntarioSimcoe County is located in central portion of Southern Ontario. The County is situated just north of the Greater Toronto Area stretching from the shores of Lake Simcoe in the east to Georgian Bay in the west... - London Buses route 131London Buses route 131London Buses route 131 is a Transport for London contracted bus route in London, United Kingdom. The service is currently contracted to London United.-History:This route dates back to 1949....
is a Transport for LondonTransport for LondonTransport for London is the local government body responsible for most aspects of the transport system in Greater London in England. Its role is to implement the transport strategy and to manage transport services across London...
contracted bus route in London - The Fiat 131Fiat 131The Fiat 131, additionally called "Mirafiori", is a small/medium family car produced by the Italian car manufacturer Fiat from 1974 to 1984. It was exhibited at 1974 Turin Motor Show....
Mirafiori small/medium family car produced from 1974 to 1984 - STS-131STS-131STS-131 was a NASA Space Shuttle mission to the International Space Station . launched on 5 April 2010 at 6:22 am from Kennedy Space Center's launch pad 39A, and landed at 9:08 am on 20 April 2010 on runway 33 at the Kennedy Space Center's Shuttle Landing Facility...
is a NASANASAThe National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research...
Contingency Logistic Flight (CLF) of the Space Shuttle AtlantisSpace Shuttle AtlantisThe Space Shuttle Atlantis is a retired Space Shuttle orbiter in the Space Shuttle fleet belonging to the National Aeronautics and Space Administration , the spaceflight and space exploration agency of the United States...
planned for no earlier than February 2010
In other fields
131 is also:- The year AD131131Year 131 was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Laenas and Rufinus...
or 131 BC131 BCYear 131 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Mucianus and Flaccus... - 131 AH is a year in the Islamic calendarIslamic calendarThe Hijri calendar , also known as the Muslim calendar or Islamic calendar , is a lunar calendar consisting of 12 lunar months in a year of 354 or 355 days. It is used to date events in many Muslim countries , and used by Muslims everywhere to determine the proper day on which to celebrate Islamic...
that corresponds to 748748Year 748 was a leap year starting on Monday of the Julian calendar. The denomination 748 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.- Asia :* January – An earthquake strikes the Middle...
– 749749Year 749 was a common year starting on Wednesday of the Julian calendar. The denomination 749 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.- Europe :* June – Aistulf succeeds his...
CECommon EraCommon Era ,abbreviated as CE, is an alternative designation for the calendar era originally introduced by Dionysius Exiguus in the 6th century, traditionally identified with Anno Domini .Dates before the year 1 CE are indicated by the usage of BCE, short for Before the Common Era Common Era...
. - 131 Vala131 Vala131 Vala is an inner main-belt asteroid. It was discovered by C. H. F. Peters on May 24, 1873, and named after Völva, a prophetess in Norse mythology. One observation of an occultation of a star by Vala is from Italy .-References:...
is an inner Main belt asteroidAsteroidAsteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones... - Iodine-131Iodine-131Iodine-131 , also called radioiodine , is an important radioisotope of iodine. It has a radioactive decay half-life of about eight days. Its uses are mostly medical and pharmaceutical...
, or radioiodine, is a radioisotope of iodineIodineIodine is a chemical element with the symbol I and atomic number 53. The name is pronounced , , or . The name is from the , meaning violet or purple, due to the color of elemental iodine vapor....
for medical and pharmaceutical use - ACP-131ACP-131ACP-131 is the controlling publication for the listing of Q codes and Z codes. It is published by NATO Allied countries, and revised from time to time...
is the controlling publication for listing of Q codeQ codeThe Q code is a standardized collection of three-letter message encodings, also known as a brevity code, all of which start with the letter "Q", initially developed for commercial radiotelegraph communication, and later adopted by other radio services, especially amateur radio...
s and Z codeZ codeZ Code is a set of codes used in CW, TTY and RTTY radio communication. Actually, there are different sets of Z-codes: one originally developed by Cable & Wireless Ltd., for commercial communications in the early days of wire and radio communications, another one independently developed by NATO...
s, as published by NATO Allied countries - Sonnet 131 by William ShakespeareWilliam ShakespeareWilliam Shakespeare was an English poet and playwright, widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's national poet and the "Bard of Avon"...
- Channel 131 on Sirius Satellite Radio is the Fox News ChannelFox News ChannelFox News Channel , often called Fox News, is a cable and satellite television news channel owned by the Fox Entertainment Group, a subsidiary of News Corporation...
- Channel 131 on XM Radio is BBC World ServiceBBC World ServiceThe BBC World Service is the world's largest international broadcaster, broadcasting in 27 languages to many parts of the world via analogue and digital shortwave, internet streaming and podcasting, satellite, FM and MW relays...
- 131 is the medical emergency telephone numberEmergency telephone numberMany countries' public telephone networks have a single emergency telephone number, sometimes known as the universal emergency telephone number or occasionally the emergency services number, that allows a caller to contact local emergency services for assistance. The emergency telephone number may...
in ChileChileChile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far... - United States Citizenship and Immigration ServicesUnited States Citizenship and Immigration ServicesUnited States Citizenship and Immigration Services is a component of the United States Department of Homeland Security . It performs many administrative functions formerly carried out by the legacy United States Immigration and Naturalization Service , which was part of the Department of Justice...
Form I-131 to apply for a travel document, reentry permit, refugee travel document or advance parole - The 131st Westminster Kennel Club Dog ShowWestminster Kennel Club Dog ShowThe Westminster Kennel Club Dog Show is a two-day, all-breed benched conformation show that takes place at Madison Square Garden in New York City every year. The first Westminster show was held in 1877....
was won by Ch. Felicity's Diamond JimFelicity's Diamond JimCh. Felicity's Diamond Jim, CD, RE , an English Springer Spaniel, best known for being the 2007 Best In Show winner at the Westminster Dog Show. It was his 51st Best in Show victory, and his last, as his owners chose to retire James after the win to focus him on his work as a certified therapy dog...
, an English Springer SpanielEnglish Springer SpanielThe English Springer Spaniel is a breed of gun dog traditionally used for flushing and retrieving game. It is an affectionate, excitable breed with an average lifespan of twelve to fourteen years. Descended from the Norfolk or Shropshire Spaniels of the mid-19th century, the breed has diverged into...
on February 13, 2007 - In music, the number 131 serves a moniker for Indie music
See also
- List of highways numbered 131
- United Nations Security Council Resolution 131United Nations Security Council Resolution 131United Nations Security Council Resolution 131, adopted on December 9, 1958, after examining the application of the Republic of Guinea for membership in the United Nations the Council recommended to the General Assembly that the Republic of Guinea be admitted....