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The Greatest Common Factor (GCF) of 20 and 28 is 4.

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

The factors of 28 are 1, 2, 4, 7, 14, and 28

The common factors are: 1, 2, 4

The Greatest Common Factor (GCF) is: 4

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Wiki User

6y ago
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Wiki User

11y ago

Factors of 28: 1, 2, 4, 7, 14, 28

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

GCF (28, 20) = 4

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Wiki User

7y ago

The GCF is 4.

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Wiki User

12y ago

4 is the GCF of 20 and 28

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Wiki User

13y ago

GCF of 20 and 28 is 4.

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Wiki User

7y ago

GCF(20, 28) = 4.

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Wiki User

14y ago

4

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Wiki User

11y ago

4 are.

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Anonymous

Lvl 1
3y ago

gcf of 20 and 28

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Q: What is the greatest common factor of 28 and 20?
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