Program to find factorial using loop in C++

#include <iostream>
using namespace std;

int main()
{	
	int num,i;
	long int fact=1;
	
	cout<<"Enter an integer number: ";
	cin>>num;
	
	for(i=num;i>=1;i--)
		fact=fact*i;
	
	cout<<"Factorial of "<<num<<" is = "<<fact<<endl;
	
	return 0;
}

Output

Enter an integer number: 6
Factorial of 6 is = 720