Divisibility Rules

We here on the Divisible team are great fans of divisibility rules. Divisibility Rules are used to determine if a number is divisible by another number without using division.

Yes, you can simply divide one number by another to see if they are divisible. However, we find it fascinating to use math rules to determine if one number is divisible by another.

As you check out the divisibility rules below, study the math and the examples to understand the reasoning behind it. We think you will find it very interesting.

Divisibility Rule for 1

Divisibility Rule for 2

Divisibility Rule for 3

Divisibility Rule for 4

Divisibility Rule for 5

Divisibility Rule for 6

Divisibility Rule for 7

Divisibility Rule for 8

Divisibility Rule for 9

Divisibility Rule for 10

Divisibility Rule for 11

Divisibility Rule for 12