Re: [math-fun] what's the best way of finding n unknown integers from their sums taken k at a time

Er, 17 is prime, too:

* The ring of integers of the cyclotomic field Z(exp(2pi i/p) has non-unique factorization for all primes p except 2,3,5,7,11,13,17,19.

--Dan _____________________________________________________________________ "It don't mean a thing if it ain't got that certain je ne sais quoi." --Peter Schickele