Question

How did you check if 7 is a factor of 72

Answer 1

Well think, does 7 go into 72?

Answer 2

A way you can check if 7 is a factor of 72 is divide 72 by 7 and check if your answer is a whole number.

72 / 7 = 10.2857...

Since this is not a whole number, 7 is not a factor of 72.

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