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First express each of the numbers in prime factors:

16 = 24

11 = 11 (Prime number)

20 = 22 x 5

Now, select the highest power for all prime numbers:

24, 11, and 5 then multiply them all together. (16)(11)(5) = 880 is the LCM

Note: 22 is not "counted" because it was a factor at a higher power in one of the other numbers. Take only the factor with the highest power.

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The LCM is 880.

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9y ago
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Q: What is the LCM of the numbers '11' '16' and '20'?
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