actually the Bible did NOT forecast that as the number of the beast
that's just how it got translated by some dumbass back in King James' day. The number of the beast is based on a numerology canon and should be written as 6-6-6 as it's a name in three parts like William Henry Gates where the numbers of each name add up to 6. And you also need to know if they were using the lesser canon or the greater canon too. But say each letter had a value equal to that of it's place order in the alphabet - won't really work in English as the original was done in Greek, but for an example: G=7, a=1, t=20, e=5, s=19, you get 7+1+20+5+19=52 which condenses to 5+2=7 in on version; in the other version t=20 condenses to 2+0=2, s=19 condenses to 1+9=10 condenses to 1+0=1, thus it's 7+1+2+5+1=16 condenses to 7.