Divisibility Rules

Divisibility by 2
The last digit is even (0, 2, 4, 6, or 8).
Divisibility by 3
The sum of the digits is divisible by 3.
 Divisibility by 4
The last two digits divisible by 4.
 Divisibility by 5
The last digit is 0 or 5.
Divisibility by 6
The sum of the digits is divisible by 3 and the number itself is divisible by 2.
Divisibility by 7
Subtract 2 times the last digit from the rest.
Divisibility by 8
If the hundreds digit is even, examine the number formed by the last two digits. If the hundreds digit is odd, examine the number obtained by the last two digits plus 4.
Divisibility by 9
The sum of the digits is divisible by 9.
Divisibility by 10
The last digit is 0.
Divisibility by 11
Add the digits in blocks of two from right to left. Example - 627: 6 + 27 = 33
Divisibility by 12
It is divisible by 3 and by 4.                                                                        Next