There is no "most common" multiple of two or more numbers, but there is a greatest common multiple if that's what you mean. But for multiples, the list of common ones goes on and on and on, since every single number in the universe is a multiple.
144
4
240
12 and 180
48
Twelve. Four squared is sixteen less four is twelve.
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 least multiple of a number is itself.
1, 2, and 4
three fourths of sixteen is twelve.3/4 of 16 is 12
Zero and twelve don't have any common multiples.
twelve and two fifth
(improved by:hoseyjames35) answer:192