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126 = 2 * 3 * 3 * 7 45 = 3 * 3 * 5 So their GCF is 3 * 3 = 9

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15y ago

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More answers

The greatest common factor of 45 and 126 is 9.

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Wiki User

14y ago
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The GCF is 9.

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Wiki User

9y ago
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Q: What is the greatest common factor of 126 and 45?
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