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100 = 2x2x5x5

115 = 5x23

It is clear that other than 1 5 is the only common factor.

Also, 5 is the greatest common factor.

So, GCF = 5.

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13y ago
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9y ago

The GCF is 5.

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Q: What is the greatest common factor of 100 and 115?
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