--- a/Number.st Sun Oct 27 09:25:37 2019 +0100
+++ b/Number.st Sun Oct 27 09:26:53 2019 +0100
@@ -3406,6 +3406,7 @@
9 isPerfectSquare
9.0 isPerfectSquare
123456789012345678901234567890 squared isPerfectSquare
+ 1000 factorial squared isPerfectSquare
"
!