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Since 75 is a factor of itself and of both 150 and 225, it will automatically be the GCF of this set.

One correct way to do it is through prime factorization.

3 x 5 x 5 = 75

2 x 3 x 5 x 5 = 150

3 x 3 x 5 x 5 = 225

Select the common factors.

3 x 5 x 5 = 75, the GCF.

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12y ago
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Wiki User

9y ago

The GCF is 15.

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Wiki User

9y ago

It is: 5

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Q: How do you get the greatest common factor of 75 150 and 225?
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