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The GCF of 9 and 36 is 9.

One way to determine the greatest common factor is to find all the factors of the numbers and compare them.

The factors of 9 are 1, 3, and 9.

The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.

The common factors are 1, 3, and 9. Therefore, 9 is the greatest common factor.

The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.

The prime factors of 9 are 3 and 3.

The prime factors of 36 are 2, 2, 3, and 3.

The prime factors they have in common are 3 and 3, so the greatest common factor is 3 x 3 = 9.

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Q: What is the greatest common factor of 9 and 36?
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