Simple program

Simple program #10 (Source code to calculate factorial of a number)

Enter a number: 5

Factorial of 5 is: 120

The program is written in C# programming language and will accept a number as input. The logic of the program is to find factorial of the input operator.

 

Simple program

Note: If you are new to C# and Console Application. Try to code First C# Program

Note: Read articles on how to use Loops and Conditions.

Let’s find out a simple and easy way to code the program.

Practical Implementation:

using System;

namespace patternProblem.Simple_program

{

    class Simple10   //factorial of a number

    {

        static void Main(string[] args)

        {

            Console.Write("Enter a number: ");

            int n = Convert.ToInt32(Console.ReadLine());

            int factorial = 1;

           

            if (n >= 0)

            {

                for (int i = n; i > 1; i--)

                {

                    factorial = factorial * i;

                }

                Console.WriteLine("Factorial of {0} is: {1}", n, factorial);

            }

            else

            {

                Console.WriteLine("Factorial is -ve number is not possible");

            }

            Console.ReadKey();

        }

    }

}

Output:

The input number is 5. The program will do find factorial of the input operator. The output is shown below:

Enter a number: 5

Factorial of 5 is: 120

Press any key to continue . . .

For any query, comment us below.

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Posted By - +Manish Kumar Gautam +LIVE VIAR +ASP.NET SOLUTIONS 

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