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Subjects>Math>Basic Math

What is the greatest common factor of 9 and 18?

Updated: 5/12/2022

Wiki User

∙ 8y ago

Best Answer

To find the greatest common factor for any group of numbers you must make a list of all the factors for each number.

The factors of 18 are: 1, 2, 3, 6, 9, 18

The factors of 9 are: 1, 3, 9

Therefore, the greatest common factor of 18 and 9 is 9.

Wiki User

∙ 12y ago

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Wiki User

∙ 8y ago

9 is a factor of 18. 9 is the largest factor of 9 and thus the largest possible common factor of 9 and 18. So, the greatest common factor of 9 and 18 is 9.
The GCF is 9.

This answer is:

Wiki User

∙ 11y ago

Since 9 is a factor of 18, it is automatically the GCF of this problem.

This answer is:

Arianna Washington-P... ∙

Lvl 2

∙ 2y ago

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The greatest common factor of 18 and 45 is 9.

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