9 & 15
3 and 45 9 and 15
The LCM is 45.
LCM of 15 9 and 18 is 90. The LCM of 9, 15 and 18 is 90.
LCM(912, 15) = 4560.
The Least Common Multiple (LCM) of 3, 9, and 15 is 45.
The LCM of 3 and 9 is 9.
You need at least two numbers to find an LCM. If that's 39 and 15, the LCM is 195. If that's 3, 9 and 15, the LCM is 45.
3 and 9.
The LCM is 45.
12 and 9. Since both have to be multiples of 3 and sum to 21, the only pairs to consider are 3 and 18 6 and 15 9 and 12 Of these, 3 and 18 have an LCM of 18 and 6 and 15 have an LCM of 30.
You need at least two numbers to find an LCM.