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The least common multiple of 18 and 15 is 90.
lcm of 18 and 15 is 90.

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โˆ™ 2010-12-20 03:47:44
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Q: What is the LCM of 18 and 15?
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What is the LCM for 18 and 15?

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What is the LCM of 1815?

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What is the LCM of 6915 and 18?

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What is the smallest number 15 and 18 go into?

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What is the LCM for 15 and 18?

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What is 15 18 and 30 LCM?

The Least Common Multiple (LCM) for 15 18 30 is 90.


Why is 145 not a LCM of 15 and 18?

There is only one LCM, so it cannot be A lcm, but possibly THE lcm. The LCM of any two (or more) numbers MUST be a multiple of all the numbers. For 15 and 18 the LCM must be a multiple of both 15 and 18. In particular it must be one of the multiples of 18. 18 is an even number, so all its multiples will be even. 145 is an odd number, so it cannot be a multiple of 18 Thus 145 cannot be a multiple of both 15 and 18. Thus it cannot be the LCM of 15 and 18. QED.