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  1. using System; using System.Text; // PRIME_mult.cs DANILIN
  2. namespace prime // rextester.com/VBXFL2777
  3. { class Program 
  4.     { static void Main(string[] args)
  5.         { var start = DateTime.Now; int f=0; int j=2; int q=0;
  6.             Random rand = new Random(); // long p = 2147483648-1; 
  7.             long p = rand.Next(Convert.ToInt32(Math.Pow(2, 22))-1);
  8.             long s = Convert.ToInt32(Math.Pow(p,0.5));
  9.             while (f < 1) 
  10.             { if (j >= s) 
  11.                 { f=2; } 
  12.               if (p % j == 0) 
  13.               { q=1; Console.WriteLine("{0} {1} {2}",p,j,Convert.ToInt32(p/j));}
  14.               j++;
  15.             }
  16. if (q != 1) { Console.WriteLine("Prime {0} BillionS", p); }
  17. var finish = DateTime.Now;
  18. Console.WriteLine(finish - start);
  19. Console.ReadKey(); 
  20. }}}
Runtime error #stdin #stdout #stderr 0.09s 33760KB
comments (?)
stdin 
Standard input is empty
stdout 
3580385 5 716077
3580385 157 22805
3580385 785 4561
00:00:00.0252388
stderr 
Unhandled exception. System.InvalidOperationException: Cannot read keys when either application does not have a console or when console input has been redirected. Try Console.Read.
   at System.ConsolePal.ReadKey(Boolean intercept)
   at System.Console.ReadKey()
   at prime.Program.Main(String[] args) in /home/CkEgoS/Project/Program.cs:line 19
https://ideone.com/UDJI6Q
Prime C#
language:
C# (NET 6.0)
created:
94 days ago
visibility:
public

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