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You need at least two numbers to find a GCF. If that's 7 and 8, the GCF is 1.

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8y ago

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The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.

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8y ago
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The GCF is 6.

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9y ago
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GCF(78, 72) = 6.

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10y ago
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Q: GCF of 78
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