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Anonymous
The Greatest Common Factor of 40 and 100 is 20. 5x2x2. Use a factor tree and learn math!!!!!!!!!!!!!!
Wiki User
GCF of 40 and 64 is 8.
GCF of 40 and 125 is 5.
The GCF of 16 and 40 = 8
The GCF of 40 and 72 is 8.
The GCF is 10.