A program to find factorial of a number using functions in c#

class Program
        {
            static int Factorial(int n)
            {
                if (n <= 1)
                    return 1;
                int fact = 1;
                for (int i = 2; i <= n; i++)
                {
                    fact = fact * i;
                }
                return fact;
            }
            static void Main(string[] args)
            {
                Console.Write("Enter a Number to find factorial: ");
                int n = Convert.ToInt32(Console.ReadLine());
                int r = Factorial(n);
                Console.WriteLine(n.ToString() + "! = " + r.ToString());
                Console.ReadLine();
            }
        }
    }

OUTPUT

 

CLICK TO DOWNLOAD

Word Document (.docx) 

PDF File (.pdf) 

Text File (.txt)