Least Common Multiple (LCM) of 144 and 420

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To get the Least Common Multiple (LCM) of 144 and 420 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:

144:   222233  
420:   22  3 57
LCM:   22223357

The Least Common Multiple (LCM) is:   2 x 2 x 2 x 2 x 3 x 3 x 5 x 7 = 5040

 

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