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The greatest common factor of 20 and 90 is 10.10 x 2 = 2010 x 9 = 90
10The GCF is 10.
It is: 10
gcf(20, 30, 90) = 10
The GCF for 20 40 90 is 10.
The GCF is 10.
The GCF is 2.