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Anonymous
Since 5 is a factor of 65, it is automatically the GCF.
Wiki User
The GCF is 5.
The GCF of 65 and 75 is 5.
The GCF of 50 & 65 is 5 !
The GCF of 15 and 65 is 5.
GCF(35, 55, 65) = 5.