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Q: What are the common factors of 21?

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The common factors of 21 42 and 84 are 21

Common factors of 21 and 64 are: 1.

The common factors of 21 and 42 are 1,3,7,21

The factors of 21 are 1,3,7, and 21. The factors of 70 are 1,2,5,7,14,35, and 70 The common factors of 21 and 70 are 1 and 7.

The common factors are: 1, 21 and 21 and 2 are common factors of 10 and 14

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

The common factors of 21 and 51 are: 1 and 3

The common factors of 30 and 21 are 1 and 3.

The common factors of 51 and 21 are: 1 and 3

The common factors of 21 and 36 are 1 and 3

The common factors of 28 and 21 are: 1 and 7

The common factors of 6 and 21 are 1 and 3.

The common factors of 21 and 24 are: 1 and 3

1 and 3 are the common factors of 21 and 45

The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.

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

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

The factors of 21 are 1, 3, 7 and 21. For them to be common, they need to be compared to another set of factors.

The factors of 21 are 1, 3, 7, and 21. For them to be common, they need to be compared to another set of factors.

21 and 22 share no common factors aside from 1.

21 and 25 share no common factors aside from 1.

21 and 100 share no common factors aside from 1.

Since 21 is a factor of 63, all of its factors are common.

Since 21 is a factor of 84, all of its factors are common.

Since 7 is a factor of 21, it is automatically the GCF and all of its factors are common.