The GCF of 7 and 28 is 7.
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The common factors of 28 and 70 are 1, 2, 7 and 14.
7
The GCF is 7.
Common factors of 28 and 42 are: 1, 2, 7, and 14.
The factors of 28 are: 1, 2, 4, 7, 14, 28The factors of 47 are: 1, 47The only common factor is: 1