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The GCF of 21, 49 and 63 is 7.
The factors of 21 are: 1, 3, 7, 21

The factors of 49 are: 1, 7, 49

The factors of 63 are: 1, 3, 7, 9, 21, 63

The common factors are: 1, 7

  • The Greatest Common Factor (GCF) is: 7

GCF = 7
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6y ago
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13y ago

For any set of numbers, there can be only one GCF. In this case, it is 7.

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6y ago

The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.

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11y ago

GCF(21, 49, 63) = 7

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14y ago

7.

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3y ago

Idkkkkk

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Anonymous

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3y ago

he GCF of 21, 49 and 63 is 7.

The factors of 21 are: 1, 3, 7, 21

The factors of 49 are: 1, 7, 49

The factors of 63 are: 1, 3, 7, 9, 21, 63

The common factors are: 1, 7

The Greatest Common Factor (GCF) is: 7

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Anonymous

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3y ago

7

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7

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7

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Q: What is the greatest common factor of 21 49 and 63?
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