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20 = 22 x 5

40 = 23 x 5

100 = 22 x 52

GCF = 22 x 5 = 20

(The greatest common factor is the product of all the factors that the numbers have in common.)

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11y ago
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9y ago

The GCF is 20.

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Q: What is the gcf of 40 100 and 20?
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