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The GCF of 36, 40, and 78 is 2.

The GCF can't be greater than the smallest difference between any of the numbers (40-36 = 4). 4 is not a factor of 78, so, factoring 4, the only other option is 2, which is a factor of all three numbers.

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The GCF of 36, 40, and 78 is 2.

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9y ago
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Q: What is the greatest common factor of 36 40 and 78?
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