This article begins with several pages describing the variants in the Greek manuscripts, pertaining to the number 666 in Rev 13:18. Some manuscripts have 616. The name of Nero Caesar in Hebrew most likely is what John is encrypting in the number. If taken from Greek, the number is 666. If taken from Latin, the number is 616. Thus, this explanation, that the number represents Nero, is the best explanation for the extant variants in the Greek manuscripts.