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You can divide 6 into equal parts of 1, 2, 3, or 6 (but not 4 or 5) because 6 is divisible by these numbers. The rules of divisibility have wide-ranging applications as an easy test for divisibility.

Divisibility Warmup


Is 123 divisible by 3?

True or False?

Since 2 is even, it is not a prime.

Is 123456 a multiple of 6?

True or False?

A number is a multiple of 3 if and only if the units digit is 3, 6 or 9.

Is 12345 a multiple of 5?


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