140 = 2 x 70 = 2 x 5 x 14 = 2 x 2 x 5 x 7; 7 is the gcf.
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The GCF of 54, 90, and 126 is 9
The GCF is 28.
The GCF is 35.
The greatest common factor of the numbers 30, 84 and 126 is 6.
No, 36 is not a factor of either one of them. The GCF of 60 and 126 is 6.