The least common multiple of the numbers 72 and 21 is 504.
The common factors are 1 and 7. (7 = 1 x 7 and 21 = 3 x 7) The only common prime factor is 7, which is also the largest common factor.
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.Multiples of 7 include 14, 21 and 28.
The only Least Common Multiple (LCM) for 7 9 14 is 126.
Multiply 21 and 11 to get a common multiple. Since 21 and 11 have no common factors, that also happens to be the least common multiple.All other common multiples are multiples of this least common multiple.
The Least Common Multiple (LCM) of (3,7) is 21.
The least common multiple of the numbers 72 and 21 is 504.
84
105
It is: 126
You need at least two numbers to find a common multiple. Multiples of 21 in that range include 21, 42, 63 and 84
The Least Common Multiple of 21 and 30 is 210.
It is 210.
The LCM is: 42
The LCM is 63.
The LCM is 189.