# Multiplicative Inverse

The number that when multiplied by the original number will result in a product of one.

The multiplicative inverse of a number b , (notated by 1/b or b^{-1} ) is the number that when multiplied by b will equal 1. That is, b x 1/b = 1.

Every number except for zero has a multiplicative inverse.

**See also: **Multiplicative Identity.

**Subjects: ** Algebra