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

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The GCF is 7.

The highest common factor is 7.

7

The GCF is 7.

The GCF is 1.

The factors of 21 and 1,3,7, and 21Now since 21 is not a factor of 49, but 7 is we can say right away the GCF is 7.

21/49 = 3/7 by dividing the numerator and denominator by its highest common factor which is 7

The highest common factor of 49 and 70 is 7

It is: 49

The highest common factor of the numbers 35, 49 and 91 is 7.

The greatest common factor of 14, 21 and 49 is 7.

The highest common factor is 7

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