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Factors

Identify which number is a factor of a given number.

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Did you know?
A factor divides evenly into a number—no remainder left!
Every number has at least two factors: 1 and itself.
Finding factors helps with multiplication and division.
Understand Factors before you start

Read this if you're new to the topic—it will help you know what to do in each problem.

A factor of a number divides into it evenly (no remainder). For example, factors of 12 are 1, 2, 3, 4, 6, and 12.

To find factors, think of pairs that multiply to give the number: 3 × 4 = 12, so 3 and 4 are factors of 12.

Examples
Factors of 12: 1, 2, 3, 4, 6, 12
3 is a factor of 15