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The factors of 81 are: 1, 3, 9, 27, 81

The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

The common factors are: 1, 3, 9

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The common factors are: 1, 3, 9

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9y ago
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Q: What are the common factors of 81 and 90?
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