--- a/progs/collatz.scala	Wed Nov 09 13:09:38 2016 +0000
+++ b/progs/collatz.scala	Wed Nov 09 13:36:13 2016 +0000
@@ -7,7 +7,7 @@
 //    until the collatz series reaches the number 1.
 //    If needed you can use an auxilary function that
 //    performs the recursion. The function should expect
-//    arguments in the range of 1 to 10 Million.
+//    arguments in the range of 1 to 1 Million.
 
 def collatz(n: Long): ... = ...