Summation of Prime

#include <iostream>
using namespace std;

int main()
{
	int n, sum=0;
	bool prime;
  cout<<"Enter an integer: ";
  cin>>n;
	for (int i=2; i<=n; i++){
		prime=true;
		for (int j=2; j<i; j++){
			if (i%j==0){
				prime=false;
				break;
			}
		}
		if (prime){
			sum+=i;
		}
	}
	cout<<"The sum is: "<<sum;
	return 0;
}