A non-trivial group with no non-trivial proper normal subgroups. Classification of finite simple groups (2004) identifies them as cyclic Z/p, alternating A_n (n≥5), groups of Lie type, and 26 sporadics.
A non-trivial group with no non-trivial proper normal subgroups. Classification of finite simple groups (2004) identifies them as cyclic Z/p, alternating A_n (n≥5), groups of Lie type, and 26 sporadics.