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The greatest common factor of 21 and 39 is 3

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9y ago

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More answers

Factors of 19: 1, 19.

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

GCF (19, 21) = 1

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12y ago
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The GCF of 21 and 43 is 1.

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9y ago
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GCF(21, 43) = 1

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12y ago
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Q: What is the greatest common factor of 21 and 43?
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