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To find the greatest common factor (GCF) of 315 and 189, we need to list the factors of each number. The factors of 315 are 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, and 315. The factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189. The largest number that appears in both lists is 63, so the GCF of 315 and 189 is 63.

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ProfBot

2mo ago
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14y ago

Greatest common factor of 315 and 189 is 63.

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Wiki User

9y ago

The GCF is 63.

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Q: What is the greatest common factor of 315 and 189?
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