Since this is a single number, you could say that it shares all of its multiples with itself. So the least multiple of the number is itself. However, determining a least common multiple generally requires at least two numbers from which to find the LCM.
You need at least two numbers to find an LCM.
The least common multiple of 21 , 19 = 399
The least common multiple of 6 , 21 = 42
The Least Common Multiple (LCM) for 49 63 21 is 441.
Least Common Multiple (LCM) for 32 21 is 672
The least common multiple of 21 and 33 is 231.
Least common multiple of 21 and 306 is 2142.
The least common multiple of the numbers 21 and 22 is 462.
The least common multiple of the numbers 21 and 32 is 672.
The least common multiple of 21 and 37 is 777.
The least common multiple of the numbers 21 and 113 is 2,373.
The least common multiple of the numbers 21 and 6 is 42.
The Least Common Multiple (LCM) for 27 21 is 189.