Daniel, Thank you. The piece of the puzzle I was missing was in-value.
Your version is much easier to read than mine. It is also easy to modify it to get a list of the primes that occur, which is nice. Regards, Bob -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/20190709160332.sstmsz72frjh4huw%40bob-cit. For more options, visit https://groups.google.com/d/optout.
