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To find the greatest common factor (GCF) of 63, 36, and 45, we need to determine the largest number that divides evenly into all three numbers. First, we find the factors of each number: 63 (1, 3, 7, 9, 21, 63), 36 (1, 2, 3, 4, 6, 9, 12, 18, 36), and 45 (1, 3, 5, 9, 15, 45). The GCF is the largest number that appears in all three lists, which is 9. Therefore, the greatest common factor of 63, 36, and 45 is 9.

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Factors of 63: 1, 3, 7, 9, 21, 63.

Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36.

Factors of 45: 1, 3, 5, 9, 15, 45.

GCF (63, 36, 45) = 9

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Wiki User

12y ago
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The GCF is 9.

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Wiki User

7y ago
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Q: What is the greatest common factor of 63 36 and 45?
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