Here's a few divisibility rules to remember.

Any even number is divisible by 2.

Any number ending in 0 is divisible by 10 or 5.

Any number ending in 5 is divisible by 5.

If the sum of the digits of a number is divisible by 3, the number is divisible by 3.

If the last number digits of a number is divisible by 4, then the number is divisible by 4.

If the sum of the digits of a number is divisible by 9, the number is divisible by 9.

If a number is divisible by both 2 and 3, it is divisible by 6.

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