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# What is the greatest common factor of 18 45 63 and 81?

Updated: 4/28/2022

Wiki User

14y ago

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 18, 45, 63, and 81 is 9

Wiki User

14y ago

Wiki User

10y ago

The GCF is 9.

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Q: What is the greatest common factor of 18 45 63 and 81?
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