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The LCM (Least Common Multiple) of 9 and 18 id 18 because 9 you can multiply it by 2 and you get 18 and you leave the other 18 the same. So 18 is the least common multiple.

18.

Q: Least common multiple of 9 18?

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36

18 is the least common multiple of 6 and 9.

They are: 2 and 9, 1 and 18

The LCM is: 36

it is 18. 18 is a multiple of all three numbers. multiples of 3: 3,6,9,12,15,18... multiples of 6: 6,12,18... multiples of 9: 9, 18...18

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The Least Common Multiple (LCM) of (9,18,15) is 90.