What is Six hundred threescore and six?

Answer 1

Score is a group or set of twenty(ish). ie; A score of men.

600+3x20+6

600+( 60 )+6 =666

Answer 2

600, plus 50 times 3, plus 6 = 756.

In The Bible the number is though 'threescore sixty-six' and equals 216.

(50 times 3, plus 66)

SCORE = 50.

Answer 3

Score = 20, not 50. 20 x 3 = 60 thus, 600 + 60 + 6 = 666.