Multiples of 54 include 54, 108 and 162. For them to be common, they need to be compared to another set of multiples.
Short answer: There is none. There is not a least common multiple of a single number, such as 54, because there cannot be any form of common multiple without two or more numbers to compare. Common multiples are multiples that the numbers being compared have in common. The least common multiple is the smallest multiple that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there is not a least common multiple. The lowest common multiple of 54 depends upon the other number(s) with which it has COMMON multiples and is one of the multiples of 54. The common multiples of 54 depends upon the other numbers with which 54 has COMMON multiples and are the multiples of the least common multiples between 54 and the other number(s).
It is 54
The first three common multiples are 18, 36, and 54.
The lowest common multiple is 18. The first four common multiples are thus the first four multiples of 18 and are: 18, 36, 54 and 72.
Common multiples include 1512, 3024, 4536 and so on.
18, 36, 54, ...
1188
There is an infinite number of common multiples for 36 and 54. A common multiple of any two numbers is any number into which each of two or more numbers can be divided evenly (zero remainder).
18, 36, 54 and so on
18, 36, 54 and so on.
18,36,and 54
270, 540, 810 and so on.