7d7e3cfd_Dihedral_group_D8___Groupprops__Explanation_for_function_value
[Function] normal rank of a p-group [Value] 2 [Similar groups] groups with same order and normal rank of a p-group | groups with same prime-base logarithm of order and normal rank of a p-group | groups with same normal rank of a p-group
There exist normal Klein four-subgroups.