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The GCF of 40 and 100 is 20.

The greatest common factor is the highest number that divides exactly into two or more numbers.

40: 1, 2, 4, 5, 8, 10, 20, 40 100: 1, 2, 4, 5, 10, 20, 25, 50, 10.

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9y ago

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