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The factors of 78 are:

1, 2, 3, 6, 13, 26, 39, 78

The factors of 91 are:

1, 7, 13, 91

The factors of 156 are:

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

The common factors are:

1, 13

The Greatest Common Factor:

GCF = 13

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8y ago

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