Divisibility Rules

Divisibility Rules

A value is divisible by IF:
2 It is an even number (ends in 2,4,6,8, or 0).
3 The sum of the digits of the number is divisible by 3.
4 The number formed by the last 2 digits is divisible by 4.
5 The number ends in 0 or 5.
6 It is even and the sum of its digits is divisible by 3.
7 (no simple rule)
8 The number formed by the last 3 digits is divisible by 8.
9 The sum of the digits is divisible by 9.
10 The number ends in 0.
11 (no simple rule)
12 The number is divisible by both 3 and 4.