Factorial in c++

#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
        int num, fact=1;
        cout<<"Enter a number to find factorial : ";
        cin>>num;
        for(int i=1;i<=num;i++)
        {                 fact=fact*i;
        }
        cout<<"Factorial of "<<num<<" is "<<fact;
        getch();
        return 0;
}

Output