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CAREFUL! 28 is a common multiple of 7 and 2!

The common factors of 7 are:

1 x 7

-1 x -7

The common factors of 2 are:

1 x 2

-1 x -2

So, as you can see, the common factors of 7 and 2 are 1and -1

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14y ago
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8y ago

No, it's a common multiple.

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Q: Is 28 a common factor of 7 and 2?
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