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The factors of 3 are 1 and 3.

The factors of 8 are 1, 2, 4, and 8.

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

The factors of 15 are 1, 3, 5, and 15.

The only common factor is 1. Therefore, the least (smallest) common factor is 1.

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16y ago

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