Factorial value : Math « Development Class « C# / C Sharp

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C# / C Sharp » Development Class » Math

Screenshots

Factorial value

        



using System.Collections.Generic;

using System.Linq;

using System;



public static class Utilities

{

    public static ulong Factorial(uint value)

    {

        // ulong.MaxValue is smaller than the result of 21!

        if (value > 20)

        {

            throw new ArgumentException("value");

        }



        if (value == 0)

        {

            return 1;

        }

        else

        {

            return value * Factorial(value - 1);

        }

    }



}

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