What is the greatest common factor of 8 10 and 20?

Answer 1

The GCF of 8, 10, and 12 is 2.

The greatest common factor (GCF) is the greatest factor that divides two numbers.

step1:

find the prime factors of each number

prime factors of 8: 2 X 2 X 2

prime factors of 10: 2 X 5

prime factors of 20: 2 X 2 X 5

step2:

multiply the common factors in the both numbers

there is only number 2 is in common.

GCF = 2

Answer 2

8 = 2 x 2 x 2; 20 = 2 x 2 x 5 so GCF is 2 x 2 ie 4.

Answer 3

The Greatest Common Factor of 20, 8 is 4.

Answer 4

28

14,2

7,2,2

24

12,2

6,2

3,2,2,2

2 x 2 x 2 x 3 = 24

2 x 2 x 7 = 28

2 x 2 = 4, the GCF

Answer 5

20 and eight's highest common factor is four.

Answer 6

greatest common factor for 8 10 and 20 is 2.

Answer 7

It is: 20