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Anonymous
The GCF is 3.
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The GCF is 21.
GCF(21, 63, 42, 84) = 21.
three
7 is the greatest common factor of 4942 and 21, or of 49, 42 and 21, if that is what you meant.
The GCF (greatest common factor) would be 21.
21
The greatest common factor of 630 , 84 = 42