[ comments | sourced from HackerNews ]
[HN] A regular expression to check for prime numbers
https://www.noulakaz.net/2007/03/18/a-regular-expression-to-check-for-prime-numbers/
https://www.noulakaz.net/2007/03/18/a-regular-expression-to-check-for-prime-numbers/
[ comments | sourced from HackerNews ]
2 Comments
withersailor@aussie.zone · 2 pts · 3y
/^1?$|^(11+?)\1+$/
That's tricky! Neat though!
lemmyng@beehaw.org · 1 pts · 3y
Clever! Inefficient (since it's essentially a brute force), but very clever and probably worth a code golf award.