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What is the greatest common factore of 18 and 45?

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Anonymous

∙ 13y ago
Updated: 10/17/2024

The GCF of 18 and 45 is 9.

The prime factors of 18 are 2, 3 and 3

The prime factors of 45 are 3, 3 and 5

Only the two 3s are common to both numbers, so the highest common factor will be 3 x 3 = 9
It is 9
The GCF of 18 and 45 is 9. The common factors of both numbers are 1, 4, and 9.

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Wiki User

∙ 8y ago
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