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The GCF of 15, 36, and 70 is 1.

The prime factorization of 15 is 3*5
The prime factorization of 36 is 2*2*3*3
The prime factorization of 70 is 2*5*7

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

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10y ago

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