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You need at least two numbers to find a GCF.

The factors of 6 are 1, 2, 3, 6.

In order to have common factors, you have to have two or more numbers to factor. For example, 6 and 14. The factors of 6 are 1, 2, 3, 6 and the factors of 14 are 1, 2, 7, 14. The common factors are 1 and 2, so the GCF is 2.

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8y ago

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