C++ Program for getting factorial of a number

#include<iostream>
using namespace std;

int main()
{
unsigned int N;
cout << "Enter the number to get its factorial: ";
cin >> N;
long double fact=1;
for( int i=N ; i>=1 ; i-- )
fact *=i;
cout << "The factorial of "
    << N
    << " is: "
    << fact
    << endl;

return 0;
}