# Check if a number is even

## How to solve it

The most common solution for this Javascript problem is to use the Remainder operator

`%`

(although slightly different sometimes also referred to as *Modulo*operator). The

*Remainder*operator returns the remainder of an Integer division. For example:`10 % 3`

returns *1*because the number*3*fits no more than*3*times in*10*.*3x3*is*9*. Thus, the*Remainder*of`10 % 3`

is *10-9=1*. Now, how do we make use of the

*Remainder/Modulo*operator to find out if a number is even oder odd? Well, we have to account for the fact that every even number is divisible by*2*while every odd number is not. So,`evenNumber % 2`

will always return zero. `oddNumber % 2`

will always return a number different from zero.