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the factors of 5 are 1 and 5

the factors of 20 are 1 2 4 5 10 20

the factors of 45 are 1 3 5 9 15 45

so the common factors are 1 and 5

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15y ago

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More answers

The common factors of 5 and 20 are 1 and 5.

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Wiki User

9y ago
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Common factors of 10 and 20 are: 1, 2, 5, and 10.

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Wiki User

12y ago
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Since 10 is a factor of 20, all of its factors are common.

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Wiki User

10y ago
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The common factors are: 1, 5

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Wiki User

14y ago
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1 and 2

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Wiki User

8y ago
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1 and 5

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Wiki User

8y ago
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Q: What are the common factors of 5 and 20?
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