# How do you find the greatest common factor of 20, 2, and 4?

##### 1 Answer

Nov 14, 2016

The factors of 20 are

The factors of 4 are 4, 2, 1.

The factors of 2 are 2,1.

The common factors of 20 , 2 and 4 are 2, 1.

Therefore, the greatest common factor of 20 ,2 and 4 is 2.