Initial data commit

Task/Semiprime/C-sharp/semiprime.cs

@@ -0,0 +1,28 @@
+static void Main(string[] args)
+{
+    //test some numbers
+    for (int i = 0; i < 50; i++)
+    {
+        Console.WriteLine("{0}\t{1} ", i,isSemiPrime(i));
+    }
+    Console.ReadLine();
+}
+
+//returns true or false depending if input was considered semiprime
+private static bool isSemiPrime(int c)
+{
+    int a = 2, b = 0;
+    while (b < 3 && c != 1)
+    {
+        if ((c % a) == 0)
+        {
+            c /= a;
+            b++;
+        }
+        else
+        {
+            a++;
+        };
+    }
+    return b == 2;
+}