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The LCM of 8, 10, and 20 is 40.

Multiples of 8: 8, 16, 24, 32, 40, 48......

Multiples of 10: 10, 20, 30, 40, 50, 60......

Multiples of 20: 20, 40, 60, 80

The smallest number that all three numbers go into evenly is 40.

Therefore the LCM of 8, 10, and 20 is 40.

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8y ago

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