I used this site to explore options. http://compoasso.free.fr/primelistweb/page/prime/liste_online_en.php http://compoasso.free.fr/primelistweb/page/prime/liste

I used this site to explore options. http://compoasso.free.fr/primelistweb/page/prime/liste_online_en.php http://compoasso.free.fr/primelistweb/page/prime/liste_onlin... It's a bit tedious but still fun-ish and seemed better than guessing. Unlike Wordle, I assume it's unreasonable to expect a player to know primes so I don't think I'd call this cheating.