# What 2 odd numbers added together equal an odd number?

##### 2 Answers

Sep 8, 2015

Let say you have the odd number

Sep 8, 2015

In normal integer arithmetic the sum of two odd numbers will always be even and not odd.

In modulo arithmetic with an odd base all numbers are both odd and even, so any two numbers work.

#### Explanation:

For example, in modulo

Less obviously, in modulo