Initial data commit

Task/Loops-Increment-loop-index-within-loop-body/C-sharp/loops-increment-loop-index-within-loop-body.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Globalization;
+
+namespace PrimeNumberLoopcs
+{
+    class Program
+    {
+        static bool isPrime(double number)
+        {
+            for(double i = number - 1; i > 1; i--)
+            {
+                if (number % i == 0)
+                    return false;
+            }
+            return true;
+        }
+        static void Main(string[] args)
+        {
+            NumberFormatInfo nfi = new CultureInfo("en-US", false).NumberFormat;
+            nfi.NumberDecimalDigits = 0;
+            double i = 42;
+            int n = 0;
+            while (n < 42)
+            {
+                if (isPrime(i))
+                {
+                    n++;
+                    Console.WriteLine("n = {0,-20} {1,20}", n, i.ToString("N", nfi));
+                    i += i - 1;
+                }
+                i++;
+            }
+        }
+    }
+}