A347035 - OEIS

%I #12 Aug 18 2021 09:34:34

%S 31,43,109,127,157,189

%N Primes whose field of roots of unity contains a cubic subfield.

%C This is probably an erroneous version of A014752; last term 189 is not prime.

%H Fernando Q. Gouvêa and Jonathan Webster, <a href="https://arxiv.org/abs/2108.05327">Kurt Hensel on Common Inessential Discriminant Divisors, 1894</a>, arXiv:2108.05327 [math.HO], 2021. See p. 36.

%H K. Hensel, <a href="https://eudml.org/doc/148923">Arithmetische Untersuchungen über die gemeinsamen ausserwesentlichen Discriminantentheiler einer Gattung</a>, Journal für die reine und angewandte Mathematik (1894), Volume: 113, page 128-160. See p. 148.

%Y Cf. A014752.

%K nonn,more

%O 1,1

%A _Michel Marcus_, Aug 12 2021.