Best Answer

The GCF of 8 and 20 is 4

8 = 2 x 2 x 2

20 = 2 x 2 x 5

There are 2 twos in each so 2 x 2 = 4

The GCF is 4.

Another explanation:

The factors of 8 are 1, 2, 4, and 8.

The factors of 20 are 1, 2, 4, 5, 10, and 20.

The common factors are 1, 2, and 4. Therefore, the greatest common factor is 4.

The GCF is 4.

More answers

Factors of 8: 1,2,4,8

Factors of 20: 1,2,4,5,10,20

The GCF is 4.

- Factors of 8: 1, 2, 4, 8
- Factors of 20: 1, 2, 4, 5, 10, 20
- GCF (8, 20) = 4

The GCF is 4.

The GCF is 4.

The greatest common FACTOR is 4.

Q: What is the greatest common factor of 8 and 20?

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The greatest common factor of 8, 20, and 30 is 2

The greatest common factor of 8 and 32 is 8.

The GCF of 8, 20, and 32 is 4.

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Related questions

The greatest common factor of 8, 20, and 30 is 2

Greatest common factor of 24 20 and 8 is 4.

The greatest common factor of 20, 8, and 5 is 1. (5 only has two factors: 1 and 5, and 5 is not a factor of 8.)

The greatest common factor of 8, 16, and 20 is 4

The GCF is 4.

It is: 1

4

The greatest common factor of 8 and 32 is 8.

The GCF of 8 and 20 is 4, and the LCM of 8 and 20 is 40.

GCF(20, 18, 8) = 2.

The GCF of 8, 20, and 32 is 4.

The greatest common factor of the numbers 8 and 20 is 4.