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The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.

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7y ago

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8y ago

81 = 3 x 3 x 3 x 3

36 = 3 x 3 x 2 x 2

GCF = 9
81 and 36's highest common factor is nine.

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7y ago


The GCF of 36 and 81 is 9.
9

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Q: What is the greatest common factor of 36 and 81?
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