Q:
# What Do You Call Two Numbers Whose Product Is One?

**A number when multiplied by its multiplicative inverse, or its reciprocal, yields a product of one, which is known as the multiplicative identity of a number.** All numbers have an inverse with the exception of zero, which cannot be multiplied by any real number to yield a product of one.

Credit:
Giulio Bernardi
CC-BY 2.0

The inverse of a number corresponds to the type of number it is reciprocating; all real numbers yield real reciprocals, rational numbers yield rational reciprocals and complex numbers yield complex reciprocals. In linear algebra, when matrix A is multiplied by matrix B to produce the identity matrix, A is said to be nonsingular or invertible with its inverse being B.

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Q:
## Why Do Two Negatives Make a Positive?

A: Multiplying two negative numbers results in a positive number because the product of two negative numbers can be described as the additive inverse of a pos... Full Answer >Filed Under: -
Q:
## What Is a Multiplicative Inverse?

A: The multiplicative inverse of a number is the number by which it can be multiplied to yield 1. It is also known as the reciprocal of a number. Full Answer >Filed Under: -
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## What Is a Matrix Inverse?

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## What Is the Prime Factorization of 144?

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