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What is the LCM of 8 and 10 and?

Updated: 9/23/2023
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Wiki User

10y ago

Best Answer

120

Make a list of the multiples of each number until you find a number which is on all three lists. Or, it is usually easier to find the LCM of 2 of the numbers, then find the LCM of that answer and the 3rd number.

10, 20, 30, 40, 50, 60, ...

12, 24, 36, 48, 60, ...

The LCM of 10 and 12 is 60. Now find the LCM of 60 and 8:

60, 120, ...

8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, ... (whew!)

The LCM of 10, 12 and 8 is 120.

There is also a method using the prime factorization of each number. It would be faster for this question, but it's harder to understand and remember.

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Kianna Gislason

Lvl 10
2y ago
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9y ago

The least common multiple is the smallest multiple that all the numbers being compared have in common.The least common multiple of 8 and 10 is 2.

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14y ago

the answer is 40

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10y ago

40

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