It is not possible to give a sensible answer to this question. The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question!
You need at least two numbers to find an LCM.
The LCM is 42.
The LCM is 42.
The least common multiple (LCM) of 21 and 42 is 42.
The LCM of 3 and 42 is 42.
lcm(42, 2) = 42
The LCM is 42.
The LCM is: 42
The LCM is: 42
The LCM is 42.
The LCM is: 42
LCM(14, 42) = 42
The Least Common Multiple (LCM) of 7, 3, and 6 is 42.