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Find out LCM 12 18?
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Find out LCM 12 18?
Least common Multiple is smallest multiple for a given set of Number

12 = 2 x 2 x 3   (1)

18 = 2 x 3 x 3   (2)

LCM = 2(common from (1) and (2))  x 2(from (1)) x 3(from both (1) and (2)) x 3 (from (2))  = 36

here we tried to take common elements out first which are

a '2' and a '3' 

So common elements multiply to 2x 3 = 6

Remainder from after taking out common from(1)  = 2

Remainder from after taking out common from (2) = 3
we are finally left with (common elements) x (remainders from (1)) x (remainders from (2)) = 6 x 2 x 3 = 36 
This question is part of UPSC exam. View all Class 5 courses
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Find out LCM 12 18?
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