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You can list them.

The factors of 36 are:

1, 2, 3, 4, 6, 9, 12, 18, 36

The factors of 42 are:

1, 2, 3, 6, 7, 14, 21, 42

The common factors are:

1, 2, 3, 6

The Greatest Common Factor:

GCF = 6

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7y ago

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