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Q: What are common factors of 21 and 84?

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The common factors of 21 42 and 84 are 21

The greatest common factor of the numbers 21 and 84 is 21.

Since 21 is a factor of 84, it is automatically the GCF and all of its factors are common.

The common factors of 63 and 84 are: 1, 3, 7, and 21

The g. c. f. of 21 and 84 is 21.

The factors of 21 are: 1, 3, 7, 21.The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.The common factors are: 1, 3, 7, 21

Since 21 is a factor of 84, it is automatically the GCF.

The common factors are: 1, 3, 7, 21.

The GCF is 21.

1 and 7

The GCF is 21.

The common factors of 84 and 105 are: 1, 3, 7, and 21The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105.The common factors are: 1, 3, 7, 21

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