Program to check whether the number is prime or not. (Level - Low)

Program # 15: Program to check whether the number is prime or not. 

 Program to check whether the number is prime or not. (Level - Low)

#include <iostream>
using namespace std;

//function declaration
int isPrime(int n);

int main()
{
int num;

cout<<"Enter an integer number: ";
cin>>num;

if(isPrime(num))
cout<<num<<" is a prime number"<<endl;
else
cout<<num<<" is not a prime number"<<endl;

return 0;
}

//function definition
int isPrime(int n)
{
int i;
int prime=1;

for(i=2;i<(n/2);i++)
{
if(n%i==0)
{
prime=0;
break;
}
}
return prime;
}