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The GCF is 9.

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8y ago
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10y ago

The GCF is 3.

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8y ago

The GCF is 9.

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11y ago

9 is.

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Q: What is the highest common factor of 21and 27?
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Related questions

What are the highest common factors of 21and 27?

The GCF is 3.


What is the highest common factor of 45 and 27?

The Highest Common Factor is: 9


What is the factor for 81 and 27?

The highest common factor of 81 and 27 is 27


What is the highest common factor of 81 and 135?

The greatest common factor of 81 and 135 is 27.


What is the highest common factor of 27 and 54?

Since 27 is a factor of 54, it is automatically the GCF.


What are the highest common factors of 36 and 27?

The common factors of 36 and 27 are 1, 3 & 9; the highest common factor is 9.


What is the highest common factor of 72 and 27?

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What is the highest common factor for 27 and 63?

It is 9


What is the highest common factor of 6 and 27?

It is 3


What is the highest common factor of 9 and 27?

It is: 9


What are the common factors for 27 and 30?

The highest common factor is 3


What is the highest common factor of 27?

common to what other number(s)?