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Method of prime factorization is a good method to find GCF.

P.F. of 68 = 2x2x17

P.F. of 56 = 2x2x2x7

It is clear that 2x2 is the greatest common factor.

Therefore, GCF of 68 and 56 = 4.

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13y ago

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More answers

The GCF is: 4

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Wiki User

14y ago
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The GCF is 4.

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Wiki User

9y ago
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Q: What is the highest common factor of 68 and 76?
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