What does L.C.M mean?

Answer 1

The LCM (least common multiple) is the smallest positive whole number exactly divisible by two or more given whole numbers. Example: the LCM of 14 and 35 is 70 because 70/14=5 and 70/35=2, and no number smaller than 70 is exactly divisible by 14 and 35.
Least Common Multiple.
The least common multiple, or LCM, is the smallest positive integer that all the members of a given set of numbers will divide into evenly with no remainder.

Answer 2

The least common multiple, or LCM, is the smallest positive integer that all the members of a given set of numbers will divide into evenly with no remainder.

Answer 3

LCM stands for the least common multiple. Given two or more integers, it is the smallest integer which is evenly divisible by these numbers.