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The greatest common factor of 45 and 120 is 15 .

Hint: any number that ends in 0 or 5 has five for a factor.

So, obviously, 5 is a common of 45 and 120.

To see if 5 i s the greatest common factor, divide both of these numbers by 5 and see

what you have left. Do these remaining numbers have any common factors?

The GCF is 15.

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7y ago

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More answers

The GCF is 15.

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Wiki User

12y ago
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Gcf of 45 and 120 is 15.

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Wiki User

14y ago
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gcf 45 and 120 is 15.

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14y ago
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HCF(45, 120) = 15

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12y ago
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Q: What is the greatest common factor of 120 and 45?
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