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The greatest common factor of 20 and 34 is 2.The GCF is 2.
It is: 2
The GCF is 17.
The GCF is 1.
3 x 3 x 5 = 45 2 x 2 x 17 = 68 No common prime factors. The GCF is 1.
The GCF is 2.
The GCF is 34.