Factorial Number program source code | From 1 to n range | c#.net

  Factorial Number program source code | From 1 to n range | c#.net
In this program i have shown how to find factorial number of given range.
using for loop i have calculated factorial number from 1  to 5 .
But , we  can calculate factorial number from 1 to n using below given source code.
output is there.
same logic we  can apply in c language , vb.net also but difference is only of syntax will be changed.
rest logic will be same.

 protected void Page_Init(object sender, EventArgs e)
    {

        int sum = 1;
        int i = 5;

        for (int j = i; j > 0; )
        {

            for (int k = 1; k <= j; )
            {

                sum = sum * j;
                j--;
            }
            Response.Write("Factorial of " + i + "is" + "\t" + sum);
            Response.Write("</br>");
            i--;
            j = i;
            sum = 1;

        }
  
          
               }


Factorial of 5 is 120
Factorial of 4 is 24
Factorial of 3 is 6
Factorial of 2 is 2
Factorial of 1 is 1

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