What is the greatest common factor of 16 and 40?

Answer 1

The greatest common factor of 16 and 40 is 8.

Factors of 16: 1 2 4 8 16

Factors of 40: 1 2 4 5 8 10 20 40
The GCF is 8.
The GCF is 8.

Answer 2

Prime factoring of 40 and 16

40 = 2 x 2 x 2 x 5

16 = 2 x 2 x 2 x 2

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GFC = 2 x 2 x 2 = 8

Answer 3

The greatest common factor is 8.

Answer 4

GCF(16, 4*o) = 4