You need at least two numbers to find an LCM.
The LCM is 72.
The Least Common Multiple (LCM) for 2 24 36 is 72.
LCM(25, 30, 72) = 1800.
The LCM of 137 and 3000 is 411000. The LCM of 61 and 72 is 4392. The LCM of 72 and 3000 is 9000.
LCM of 8 and 9 and 12 is 72.