Program of Factorial Using Loop in C++

In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example,

The value of 0! is 1, according to the convention for an empty product.

Example Program

/* Program of Factorial Using Loop in C++
Pardeep Patel @ studywarehouse.com */#include<iostream>
#include<conio.h>

using namespace std;

int main()
{

// Variable Declaration
int counter, n, fact = 1;

// Get Input Value
cout<<"Enter the Number :";
cin>>n;

//for Loop Block
for (int counter = 1; counter <= n; counter++)
{
fact = fact * counter;
}

cout<<" Factorial Value of "<<n<<" is: "<<fact;
// Wait For Output Screen
getch();
return 0;
}
  
   

     
  
   

     

Sample Output
Enter the Number: 6
Factorial Value of 6 is: 720