Least Common Multiple (LCM) of 420 and 126

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To get the Least Common Multiple (LCM) of 420 and 126 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:

420:   223 57
126:   2 33 7
LCM:   223357

The Least Common Multiple (LCM) is:   2 x 2 x 3 x 3 x 5 x 7 = 1260

 

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