It is not possible to give a sensible answer to this question for at least two reasons.
The first is that the word "least" is a superlative. That means there can only be one. So asking for least common multiplesdoes not make sense.
Second, 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!
The LCM is: 52
They are all multiples.
52 = 4 x 13 = 22 x 1381 = 9 x 9 = 34Since 52 and 81 do not have any common prime factor, then 52 x 81 = 4,212 is their LCM. So that the other multiples they have in common are all the multiples of 4,212.
26 = 26, 52, 78 52 = 52, 104, 156
Multiples of 26 include 26, 52, 78, 104, 130 and so on. You need at least two numbers to find a GCF.
The least common multiples of 7 and 14 are 14,28 and 42>
Least common multiples 12 and 16 is 48.
The least common multiples of the number 6 and 9 is 3.
There is not a least common multiple of a single number, such as 78, because there cannot be a least 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. Examples: The least common multiple of 18 and 78 is 234. The least common multiple of 52 and 78 is 156. The least common multiple of 78 and 195 is 390.
Multiples of 26 include 26, 52, 78 and 104. For them to be common, they need to be compared to another set of multiples.
The least common multiples of 5, 11, and 13 is 715.
There is no "most common multiple". To find all common multiples, you start by finding the least common multiple. All other common multiples are multiples of this least common multiple.