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The greatest common factor of 42 and 72 is 6

Gcf stands for Greatest Common Factor, The gcf of 42 and 72 is the largest positive number that is a factor of both 42 and 72.

The positive factors of 42 (the integral divisors of 42) are: 1, 2, 3, 6, 7, 14, 21, and 42.

The positive factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 36, and 72.

Therefore the gcf of 42 and 72 is 6, as the greatest factor that 42 and 72 have in common.

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โˆ™ 2016-04-02 13:59:32
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Q: What is the greatest common factor of 42 and 72?
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