Least Common Multiple (LCM) of 1400 and 42

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To get the Least Common Multiple (LCM) of 1400 and 42 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:

1400:   222 557
42:   2  3  7
LCM:   2223557

The Least Common Multiple (LCM) is:   2 x 2 x 2 x 3 x 5 x 5 x 7 = 4200

 

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