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The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.

The greatest common factor of 440 and 840 is 40.

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14y ago
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15y ago

40

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Q: What is the greatest common factor of 840 and 440?
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