Number of the Beast to calculate "the number of the beast" is used in many of the below interpretations. Preterist theologians typically support the numerical interpretation that 666 is the equivalent of the name and title Nero Caesar (Roman Emperor 54–68 AD). Written in Aramaic, this can be valued at 666 using the Hebrew numerology of gematria, and was used to secretly speak against the emperor. Also "Nero Caesar" in the Hebrew alphabet is "NRON QSR", which when used as numbers represent 50 200 6 50 100 60 200, which add to 666. The Greek term ("charagma", "mark" in Revelation 13:16) was most commonly
Number of the Beast used for imprints on documents or coins. Charagma is well attested to have been an imperial seal of the Roman Empire used on official documents during the 1st and 2nd centuries. In the reign of Emperor Decius (249–251 AD), those who did not possess the certificate of sacrifice () to Caesar could not pursue trades, a prohibition that conceivably goes back to Nero, reminding one of Revelation 13:17. Preterists argue that Revelation was written before the destruction of the Temple, with Nero exiling John to Patmos. Most scholars, however, argue it was written after Nero committed suicide in AD 68.