http://qs1969.pair.com?node_id=1220530

IB2017 has asked for the wisdom of the Perl Monks concerning the following question:

Dear monks

How can I write the following regex so that it matches ad infinitum all numbers that are x=x+5? In my regex I stopped at 25.

if ($Number=~/0|5|10|15|20|25/){ ... }