What are the common factors and greatest common factor of 21?

Anonymous

∙ 14y ago

Updated: 8/16/2019

There is neither a greatest common factor nor common factors of a single number, such as 21, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 21 are 1, 3, 7, and 21.

Wiki User

∙ 14y ago

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What are the common factors and greatest common factor of 21 and 42?

The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.

What are the greatest common factors of 21 and 36?

The greatest common factor is 3

Why is 1 the greatest common factor of 21 and 40?

The greatest common factor of 21 and 40 is 1 because there are no larger common factors.

What are the common factors and greatest common factor of 21 and 84?

Since 21 is a factor of 84, it is automatically the GCF and all of its factors are common.

What are the factors of 14 and 21 and the greatest common factor?

The factors of 14 are: 1, 2, 7, 14.The factors of 21 are: 1, 3, 7, 21.The Greatest Common Factor (GCF) is: 7.

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Greatest common factors for 21 and 56?

The Greatest Common Factor (GCF) is: 7

What are the greatest common factors of 10 and 21?

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What are the greatest common factors of 21 and 18?

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What is the greatest common factors of 63 and 147?

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What is the greatest common factors of 15 and 21?

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Common factors of 14 and 21?

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