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factorial number program in c#

This program takes numbers from users and finds a Factorial of numbers.

factorial of a number is the multiplication of all its below number.
for example: 5! = 5*4*3*2*1 = 120

factorial program in c# using for loop

using System;
class factorial {
  public static void Main() {
    int i,n,fact=1;
    Console.Write("Enter the number:");
    n=int.Parse(Console.ReadLine());
    for(i=1;i<=n;i++){
        fact=fact*i;
    }
   Console.Write("Factorial of " +n+" is: "+fact); 
  }
}

output

Enter the number:5
Factorial of 5 is: 120

factorial program in c# using recursion

using System;
class factorial {
  public int recursive_fact(int num)
  {
      if(num>0)
        return num*recursive_fact(num-1);
    else
        return 1;
  }
  public static void Main() {
    int n,ans;
    Console.Write("Enter the number:");
    n=int.Parse(Console.ReadLine());
    factorial fact = new factorial(); // Creating Object  
    ans=fact.recursive_fact(n);
    Console.Write("Factorial of " +n+" is: "+ans); 
  }
}

output

Enter the number:4
Factorial of 4 is: 24

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