Symbol

1. The number of the Beast.

   Also it causes all, both small and great, both rich and poor, both free and slave, to be marked on the right hand or the forehead, so that no one can buy or sell who does not have the mark, that is, the name of the beast or the number of his name. This calls for wisdom: let anyone with the understanding calculate the number of the beast, for it is the number of a person. Its number is six hundred and sixty-six. - Book of Revelation 13:16-18