Since 8 is a factor of 64, it is automatically the GCF.
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72 / 64 = 1 r 8 64 / 8 = 8 r 0 GCF of 72 and 64 is 8.
The GCF is 8.
The GCF of 64 and 144 is 8.
The Greatest Common Factor (GCF) of 64 and 72 is 8.
The Greatest Common Factor (GCF) of 24 and 64 is 8.