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The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56
The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

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8y ago
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10y ago

They are: 1 2 3 6

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Q: What are the first four common factors of 72 and 90?
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