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Best Answer

Use the following factor trees to determine the answer

35

5, 7

and

63

7, 9

7, 3, 3

7 is the common factor of 35 and 63

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15y ago
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7y ago

The three numbers have no common factor other than 1.

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Wiki User

10y ago

The highest common factor is 9

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Wiki User

14y ago

The three numbers have no common factor.

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Q: What are the common factors for 45 81 and 63?
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