Least Common Multiple (LCM) of 78 and 642

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To get the Least Common Multiple (LCM) of 78 and 642 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:

78:   2313 
642:   23 107
LCM:   2313107

The Least Common Multiple (LCM) is:   2 x 3 x 13 x 107 = 8346

 

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