It is: 8
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The GCF is 2.
The Greatest Common Factor of 56, 72, 64 is 8.
The GCF of 32, 64 and 72 is 8. You are left with 4, 8 and 9 after division respectively. here are no common factors following this that will reduce the numbers further.
The GCF is 8.
The GCF is 8.