using System; namespace Prg2ConsoleApplication9 { class ArmstrongNumber { static void Main(string[] args) { number num = new number(); num.getdata(); } } class number { public void getdata() { int no,r,sum=0,n=0; Console.WriteLine("Enter number\n"); no = Int32.Parse(Console.ReadLine()); n = no; while (n > 0) { r = n % 10; n = n / 10; sum += r*r*r; } if (sum == no) { Console.WriteLine("{0} is a Amstrong number" , no); } else { Console.WriteLine("{0} is not a Amstrong number", no); } Console.ReadLine(); } } } If you want to add any additional points or if you find any discrepancies in this article pleas...