What is the greatest common factor of 18/54

The greatest common factor of 18 and 54 is 18
One way to determine the greatest common factor is to find all the factors of the numbers and compare them.
The factors of 18 are 1, 2, 3, 6, 9, and 18.
The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54.
The common factors are 1, 2, 3, 6, 9, and 18. Therefore, the greatest common factor is 18.

The greatest common factor can also be a calculated by identifying the common prime factors and multiplying them together.
The prime factors of 18 are 2, 3, and 3.
The prime factors of 54 are 2, 3, 3, and 3.
The prime factors in common are 2, 3, and 3, so the greatest common factor is 2 x 3 x 3 = 18.
hope this help

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I'm gonna have to say about 13 percent