Is Prime Function

Returns true if the number n is prime, false otherwise.

isprime(n)

The isprime function returns true if the input is prime and false otherwise. For example, given the input of 13 the function returns true since is a prime number.

 isprime(13) = true

 isprime(2) = true

 isprime(3) = true

 isprime(4) = false

 isprime(5) = true

 isprime(6) = false