You need at least two numbers to find an LCM.
The Least Common Multiple of 125 and 15 is 3,000.
The LCM is 15.
The Least Common Multiple of 9 and 15 is 45.
The least common multiple of the numbers 612 and 15 is 3,060.
120
5
3
15
60
90
That would be 15
The LCM is 60.