Least Common Multiple (LCM) of 21 and 16

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To get the Least Common Multiple (LCM) of 21 and 16 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:

21:       37
16:   2222  
LCM:   222237

The Least Common Multiple (LCM) is:   2 x 2 x 2 x 2 x 3 x 7 = 336

 

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