## Divisibility Rules of Various Numbers

(2-25)

A number is divisible by 2 if its unit’s digit is even or 0.

Divisibility by 3:

A number is divisible by 3 if the sum of its digits are divisible by 3.

Divisibility by 4:

A number is divisible by 4 if the last 2 digits are divisible by 4, or if the last two digits are 0’s.

Divisibility by 5:

A number is divisible by 5 if its unit’s digit is 5 or 0.

Divisibility by 6:

A number is divisible by 6 if it is simultaneously divisible by 2 and 3.