The lowest/least common multiple (abbreviated to LCM) is the lowest number that is a multiple of two or more subject-numbers. For example, the common multiples of 4 and 5 are 20, 40, 60 ...

3. "The lowest common denominator." All three are ways to separate the writer and her sensibility — which are presumed to be congruent with the reader and her sensibility — from invisible and ...