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Excluding 1, they are : 2 , 3, 6, 14, 21, and 42.

42 = 2 x 3 x 7

84 = 2 x 2 x 3 x 7

the multiple factors are 2 x 7, 3 x 7, and 2 x 3 x 7 (which is 42).

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13y ago

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More answers

Since 42 is a factor of 84, all of its factors are common.

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Wiki User

8y ago
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The common factors are 1, 2, 3, 6, 7, 14, 21 and 42.

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8y ago
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Q: What are the common factors of 84 and 42?
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