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What is the LCM of 9 3 and 7?

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โˆ™ 2015-12-14 13:05:35

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63.

The way to answer this type of problem quickly and efficiently is to multiply some of the numbers together. Pair them. In this problem, I paired them into:

7,3

7,9

3,9

For example, I said to myself "7x3=21. Is 21 a multiple of 9? No." Eliminate that pair.

7,3

Next i did 7x9. 63. This is a multiple of all 3 of these numbers. Don't stop there! Check, just to be safe.

7,9

3x9=27. 27 isn't a factor of 7. Eliminate that pair!. You've solved the problem. 63 is the LCM of 7,3, and 9

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โˆ™ 2008-11-20 00:06:31
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SAYAN BHATTACHARYA

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โˆ™ 2022-06-06 06:34:13
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โˆ™ 2016-02-05 16:29:50

The LCM is 63.

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โˆ™ 2015-12-12 23:14:09

The LCM is 63.

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โˆ™ 2014-06-07 11:50:57

LCM(7, 9, 3) = 63.

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โˆ™ 2015-12-14 13:05:35

It is: 63

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