LCM of 15 and 60 = 60
The LCM is 60.
LCM(15, 20, 30) = 60
The LCM of 15 30 and 60 is 60.
The LCM is 60.
The LCM is 60.
The LCM is 420.
The LCM is 300.
The LCM is 240.
You need at least two numbers to find an LCM. If that's 4 and 15, the LCM is 60.
The LCM is: 60
Two or more numbers are normally needed to find the LCM