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The factors of 28 are: 1, 2, 4, 7, 14, 28

The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42

The factors of 63 are: 1, 3, 7, 9, 21, 63

The common factors are: 1, 7

  • The Greatest Common Factor (GCF) is: 7

The GCF is: 7
The GCF is 7.
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7y ago

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