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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.

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βˆ™ 6y ago
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βˆ™ 12y ago

Factors of 8: 1,2,4,8

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

The GCF is 4.

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βˆ™ 11y ago
  • Factors of 8: 1, 2, 4, 8
  • Factors of 20: 1, 2, 4, 5, 10, 20
  • GCF (8, 20) = 4
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βˆ™ 12y ago

The GCF is 4.

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βˆ™ 8y ago

The GCF is 4.

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βˆ™ 8y ago

The greatest common FACTOR is 4.

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