Prime Factors

#include<iostream>
using namespace std;
int main()
{
    int i, j, num, isPrime;
    cout<<"Enter Number: "<<endl;
    cin>>num;

    cout<<"Prime factors of "<<num<<" are: "<<endl;

    for(i=2; i<=num; i++)
    {
        if(num%i==0)
        {
            isPrime = 1;
            for(j=2; j<=i/2; j++)
            {
                if(i%j==0)
                {
                    isPrime = 0;
                    break;
                }
            }
            if(isPrime==1)
            {
                cout<<i<<endl;
            }
        }
    }

    return 0;
}