1 (number)
Encyclopedia
{ class="infobox" style="width: 20em;"

! colspan="2" style="textalign:center; font:10em verdana; background:#ccc;" 1

 colspan="2" 

 Cardinal
 1
one

 Ordinal
 1st
first

 Numeral system
 unary

 Factorization


 Divisor
s
 1

 Greek numeral
 α'

 Roman numeral
 I

 Roman numeral (Unicode)
 Ⅰ, ⅰ

 Persian
 ١  یک

 Arabic
 ١

 Ge'ez
 ፩

 Bengali
 ১

 Chinese numeral  一，弌，壹

 Korean
 일, 하나

 Devanāgarī
 १

 Telugu
 ೧

 Tamil
 ௧

 Kannada
 ೧

 Hebrew
 א (alef
)

 Khmer
 ១

 Thai
 ๑

 prefix
es
 mono /haplo (from Greek
)

! colspan="2" style="textalign:center; font:10em verdana; background:#ccc;" 1

 colspan="2" 

 Cardinal
Cardinal number
In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality of sets. The cardinality of a finite set is a natural number – the number of elements in the set. The transfinite cardinal numbers describe the sizes of infinite...
 1
one

 Ordinal
 1st
first

 Numeral system
Numeral system
A numeral system is a writing system for expressing numbers, that is a mathematical notation for representing numbers of a given set, using graphemes or symbols in a consistent manner....
 unary
Unary numeral system
The unary numeral system is the bijective base1 numeral system. It is the simplest numeral system to represent natural numbers: in order to represent a number N, an arbitrarily chosen symbol representing 1 is repeated N times. For example, using the symbol  , the number 6 is represented as ...

 Factorization
Factorization
In mathematics, factorization or factoring is the decomposition of an object into a product of other objects, or factors, which when multiplied together give the original...


 Divisor
Divisor
In mathematics, a divisor of an integer n, also called a factor of n, is an integer which divides n without leaving a remainder.Explanation:...
s
 1

 Greek numeral
 α'

 Roman numeral
 I

 Roman numeral (Unicode)
 Ⅰ, ⅰ

 Persian
Persian language
Persian is an Iranian language within the IndoIranian branch of the IndoEuropean languages. It is primarily spoken in Iran, Afghanistan, Tajikistan and countries which historically came under Persian influence...
 ١  یک

 Arabic
HinduArabic numeral system
The Hindu–Arabic numeral system or Hindu numeral system is a positional decimal numeral system developed between the 1st and 5th centuries by Indian mathematicians, adopted by Persian and Arab mathematicians , and spread to the western world...
 ١

 Ge'ez
Ge'ez alphabet
Ge'ez , also called Ethiopic, is a script used as an abugida for several languages of Ethiopia and Eritrea but originated in an abjad used to write Ge'ez, now the liturgical language of the Ethiopian and Eritrean Orthodox Church...
 ፩

 Bengali
Bengali language
Bengali or Bangla is an eastern IndoAryan language. It is native to the region of eastern South Asia known as Bengal, which comprises present day Bangladesh, the Indian state of West Bengal, and parts of the Indian states of Tripura and Assam. It is written with the Bengali script...
 ১

 Chinese numeral  一，弌，壹

 Korean
Korean language
Korean is the official language of the country Korea, in both South and North. It is also one of the two official languages in the Yanbian Korean Autonomous Prefecture in People's Republic of China. There are about 78 million Korean speakers worldwide. In the 15th century, a national writing...
 일, 하나

 Devanāgarī
Devanagari
Devanagari deva]]" and "nāgarī" ), also called Nagari , is an abugida alphabet of India and Nepal...
 १

 Telugu
Telugu language
Telugu is a Central Dravidian language primarily spoken in the state of Andhra Pradesh, India, where it is an official language. It is also spoken in the neighbouring states of Chattisgarh, Karnataka, Maharashtra, Orissa and Tamil Nadu...
 ೧

 Tamil
Tamil language
Tamil is a Dravidian language spoken predominantly by Tamil people of the Indian subcontinent. It has official status in the Indian state of Tamil Nadu and in the Indian union territory of Pondicherry. Tamil is also an official language of Sri Lanka and Singapore...
 ௧

 Kannada
Kannada language
Kannada or , is a language spoken in India predominantly in the state of Karnataka. Kannada, whose native speakers are called Kannadigas and number roughly 50 million, is one of the 30 most spoken languages in the world...
 ೧

 Hebrew
Hebrew numerals
The system of Hebrew numerals is a quasidecimal alphabetic numeral system using the letters of the Hebrew alphabet.In this system, there is no notation for zero, and the numeric values for individual letters are added together...
 א (alef
Aleph
* Aleph or Alef is the first letter of the Semitic abjads descended from ProtoCanaanite, Arabic alphabet, Phoenician alphabet, Hebrew alphabet, Syriac alphabetPeople:*Aleph , an Italo disco artist and alias of Dave Rodgers...
)

 Khmer
Khmer numerals
Khmer numerals are characters used for writing numbers for several languages in Cambodia, most notably Cambodia's official language, Khmer. They date back to at least the oldest known epigraphical inscription of the Khmer numerals in 604 AD, found on a stele in Prasat Bayang, Cambodia, located not...
 ១

 Thai
Thai numerals
Thai numerals constitute a numeral system of Thai number names for the Khmer numerals traditionally used in Thailand, also used for the more common Arabic numerals, and which follow the HinduArabic numeral system.Usage:...
 ๑

 prefix
Numerical prefix
Number prefixes are prefixes derived from numbers or numerals. In English and other European languages, they are used to coin numerous series of words, such as unicycle – bicycle – tricycle, dyad – triad – decade, biped – quadruped, September – October – November – December, decimal – hexadecimal,...
es
 mono /haplo (from Greek
Greek language
Greek is an independent branch of the IndoEuropean family of languages. Native to the southern Balkans, it has the longest documented history of any IndoEuropean language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...
)