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What are the factors and prime factors of 18 and 21?

Updated: 8/17/2019
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14y ago

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The factors of 18 are: 1, 2, 3, 6, 9, and 18.
The prime factors of 18 are: 2 and 3.

The factors of 21 are: 1, 3, 7, and 21.
The prime factors of 21 are: 3 and 7.

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Q: What are the factors and prime factors of 18 and 21?
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