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The GCF of 18, 25, and 27 is 1.

The prime factorization of 18 is 2*3*3

The prime factorization of 25 is 5*5

The prime factorization of 27 is 3*3*3

Since they have no factors in common, their GCF is 1, and they are called "coprime."

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7y ago
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8y ago

GCF(25, 27) = 1. The numbers are co-prime.

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11y ago

The GCF is 1.

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8y ago

The GCF is 3.

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12y ago

One.

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7y ago

It is: 1

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Q: What is the greatest common factor of 5 and 27?
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