"lcm" means least common multiple; usually you would need to calculate the least common multiple of two or more numbers.The least common multiple of a single number is quite trivial: it's the number itself. Thus, the lcm of 25 is 25; etc.
LCM of 25 and 75 is 75.
The LCM is 75.
The least common multiple of 15 and 25 is 75.
The LCM is 75.
The LCM is 75.
The LCM is 75.
The least common multiple of 4, 10, 25, and 75 is 300.
The LCM is 150.
70
60
LCM(25, 60, 75) = 300.
Since 75 is a multiple of 25, it is automatically the LCM of this problem.