What is the additive inverse of ?

For an arbitrary number n, there is an additive inverse element whose sum with n is zero. The additive inverse element of n is represented as -n. In the real number range, the opposite of a number x-x is called its additive inverse element; relatively, the reciprocal 1/x of a number x is called its multiplicative inverse element.

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.

120Cm