18 = 9 x 2, so LCM of 18 & 9 is 18. 8 = 2 x 2 x 2; so 18 & 8 share a common factor of 2, so the LCM = 18 x 2 x 2 = 72.
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The LCM of all these numbers is 72. (LCM of 9, 6, 3 is 18.) (LCM of 18, 8, is 72.)
The LCM is 72.
The LCM is 18.
The LCM of these numbers is 18. LCM is Least Common Multiple.
The Least Common Multiple (LCM) for 3 8 18 is 72.