The GCF is 8.
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The greatest common factor of 64 , 93 = 1
The factors of 40 are 1, 2, 4, 5, 8, 10, 20 and 40 64 is not divisible by 10, 20 or 40. So 8 is the greatest common factor of 40 and 64. Then testing 8 against 96, we find that it is a factor (8 x 12 = 96) Therefore 8 is the greatest common factor of these three numbers.
The greatest common factor(gcf) of 64 and 40 is 8. The factors of 40 are 2, 2, 2 and 5 The factors of 64 are 2, 2, 2, 2, 2, and 2 So the highest common factor will have no fives and three 2s = 2 x 2 x 2 = 8
The greatest common factor of 60 and 64 is 4.
64 and 40's highest common factor is eight.