[TUHS] /usr/games/factor

[Jeremy C. Reed]

> I recall playing with this on the -11, but it seems to have become extinct 
> (the program, I mean).  I seem to recall that it was written in PDP-11 
> assembly; did it ever get rewritten in C?

Looks like rewritten at least twice (1983 and 1990):
http://svnweb.freebsd.org/csrg/games/factor/

Also a maintained version
http://cvsweb.netbsd.org/bsdweb.cgi/src/games/factor/