2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/220393We present a primality criterium based on congruences for cyclotomic polynomials, and point out a way to generalize our result in order to obtain a family of similar criteria. No practical use is aimed however.4 pagesNumber Theory11A07; 11A41; 11A51; 11C08text