What is the greatest common factor of 672 and 1470?

Answer 1

4704
= 2 x 2352
= 2 x 2 x 1176
= 2 x 2 x 2 x 588
= 2 x 2 x 2 x 2 x 294
= 2 x 2 x 2 x 2 x 2 x 147
= 2 x 2 x 2 x 2 x 2 x 3 x 49
= 2 x 2 x 2 x 2 x 2 x 3 x 7 x 7

672
= 2 x 336
= 2 x 2 x 168
= 2 x 2 x 2 x 84
= 2 x 2 x 2 x 2 x 42
= 2 x 2 x 2 x 2 x 2 x 21
= 2 x 2 x 2 x 2 x 2 x 3 x 7

The prime factors they have in common are 2 x 2 x 2 x 2 x 2 x 3 x 7, so the greatest common factor is 672.

Answer 2

Since 672 is a factor of 4704, it is automatically the GCF.

Answer 3

Greatest common factor of 672 and 1470 is 42.

Answer 4

The GCF is 42.

Answer 5

The Greatest Common Factor (GCF) is: 84.