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What is the greatest common factor for 21 7?

Updated: 8/20/2019
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11y ago

Best Answer

Factors of 21: 1, 3, 7, 21.

Factors of 7: 1, 7.

GCF (21, 7) = 7

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11y ago
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Q: What is the greatest common factor for 21 7?
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