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List the factors.

1, 2, 3, 6, 7, 14, 21, 42

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

The GCF is 6.

List the multiples.

42, 84, 126, 168, 210, 252, 294, 336, 378, 420, 462

60, 120, 180, 240, 300, 360, 420, 480

The LCM is 420.

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12y ago

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