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Anonymous
The GCF is 1.
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The GCF is 7.
It is 5.
The GCF is 14.
42=2x3x7 56=23x7 so the HCF = 2x7 = 14
They are 8 and 2520 respectively
The greatest common factor (usually abbreviated GCF) of 15, 35, and 20, is 5.