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64 has factors: 1,2,4,8,16,32,64

42 has factors: 1,2,3,7,21,42

the only things they have in common are 1 and 2

The common factors are 1, 2 and 4.

The common factor is: 1

Q: What are the common factors of 64 and 42?

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1 and 2 are factors common to both numbers

Common factors of 12 & 64 are 1, 2 and 4.

Factors of 64... 1,2,4,8,16,32,64 Factors of 66... 1,2,3,6,11,22,33,66 Common factors to both numbers.... 1 & 2.

43 is a prime number so the common factors of 43 and 42 are 1

The factors of 64 are all 2s and the factors of 81 are all 3s. The greatest common factor is 1, since they have no factors in common. ■

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The factors of 27 are 1,3,9, and 27 The factors of 64 are 1,2,4,8,16,32, and 64. 1 is the only common factor of 27 and 64.

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The common factors of 64 and 156 are 1,2, and 4.

The common factors of 42 and 273 are 1, 3, 7 and 21.

The common factors of 42 and 92 are: 1 and 2

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The Common Factors of 42 and 44 are 1, 2