JS Finding out Prime Number

We call a number that has only 1 and itself as divisor as Prime number.

I was thinking how to get it through code, it was hard but I figured that those numbers divide by any numbers between 1 and itself doesn't divide so here's a code.

Example for primeNumber function

https://github.com/SoftwareDevJake/PrimeNumber

GitHub - SoftwareDevJake/PrimeNumber