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Q: Greatest common factors for 21 and 56?

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The GCF is 7.

21 factors to [3 7] 56 factors to [2 2 2 7] Common factors [7] Answer is 7 ■

The greatest common factor of 21 and 56 is 7.

The common factors of 21, 42, and 56 are: 1 and 7

the greatest common factor is 7, because 21 divided by 7 is 3, 28 divided by 7 is 4 and 56 divided by 7 is 8.

The greatest common factor of 42 and 56 is 14.

The greatest common factor of 56 and 64 is 8

There are only two common factors for 56 and 21. They are 1 and 7.

The GCF of 21, 42, and 56 is 7.The factors of 21 are: 1, 3, 7, 21The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56The common factors are: 1, 7The Greatest Common Factor (GCF) is: 7

The greatest, (Highest) Common Factor of 21 and 56 is 7

Factors of 21: 1, 3, 7, 21.Factors of 35: 1, 5, 7, 35.Factors of 56: 1, 2, 4, 7, 8, 14, 28, 56.GCF (21, 35, 56) = 7

The common factors are: 1, 7.

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