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Subjects>Math>Basic Math

What is the greatest common factor of 21 and 63?

Updated: 4/28/2022

Wiki User

∙ 7y ago

Best Answer

The greatest common factor of 21 and 63 is 21.Since 21 is a factor of 63, it is automatically the GCF.

Wiki User

∙ 7y ago

This answer is:

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Wiki User

∙ 7y ago

The GCF is 21.

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Wiki User

∙ 7y ago

GCF(21, 63) = 21.

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Wiki User

∙ 7y ago

GCF(63, 21) = 21.

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Wiki User

∙ 13y ago

It's 21.

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Continue Learning about Basic Math

What is the greatest common factor of 42 63 and 105?

3The GCF is: 2121.The GCF is 21.

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The Greats Common Factor (GCF) is 21 63: 1,3,7,9,21,63 42: 1,2,3,67,14,21,42 21: 1,3,7,21 They all number 21 listed in there the Factors

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What is the greatest common factor of 21 49 63?

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Why is 21 the greatest common factor in 21 and 63?

Because 21 is a factor of 63. 21 is the greatest factor of 21. A larger number doesn't exist.

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The greatest common factor of 63 , 84 = 21

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