> From: Robert Boyer <robertstephenboyer@gmail.com>
> Date: Sat, 9 Mar 2024 14:24:52 -0600
> Cc: "Basil L. Contovounesios" <basil@contovou.net>, Eli Zaretskii <eliz@gnu.org>, rms@gnu.org
>
> If one wants to look at primes-below-... in Emacs, then try
>
> M-x so-long-mode
>
> Without that, M-> kills my Emacs.
If that's Emacs 28 or older, then yes, that's the best solution you
could use.