Least Common Multiple (LCM) of 1989 and 18

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To get the Least Common Multiple (LCM) of 1989 and 18 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:

1989:    331317
18:   233  
LCM:   2331317

The Least Common Multiple (LCM) is:   2 x 3 x 3 x 13 x 17 = 3978

 

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