Least Common Multiple (LCM) of 69 and 420

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To get the Least Common Multiple (LCM) of 69 and 420 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:

69:     3  23
420:   22357 
LCM:   2235723

The Least Common Multiple (LCM) is:   2 x 2 x 3 x 5 x 7 x 23 = 9660

 

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