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GCF(1, 4) = 1

GCF is normally defined in terms of positive numbers.

The GCF is 1.

Q: What is the GCF of 1 and -4?

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The GCF of 4 and 9 is 1

The GCF is 1.

The GCF of 4 and 10 is 2.

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The GCF is 1.

The greatest common factor of the numbers 11 and 19 is 1.

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