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The factors of 12 are 1, 2, 3, 4, 6, and 12

The factors of 18 are 1, 2, 3, 6, 9, and 18

The factors of 20 are 1, 2, 4, 5, 10, and 20

The common factors of 12, 18 and 20 are 1 and 2

The common factors of 12 and 18 are 1, 2, 3, and 6

The common factors of 12 and 20 are 1, 2, and 4

The common factors of 18 and 20 are 1 and 2

The total number of factors for 12, 18 and 20 are all the same (6).

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15y ago

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