Order 16448.
58 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2×C4 | #14523348 |
| commutator, hypocenter | C257 | C4×C16 |
| Frattini | C22 | C2×#14523348 |
| Fitting | C2×C4×C257 | C8 |
| socle, prime radical | C22×C257 | C2×C8 |
| cosocle | C2×#14523346 | C22 |
| LCS | G ▷ C257 | |
| UCS | C1 ◁ C2×C4 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 3. #16861630 | C4 | direct (N × H) |
| 13. C4×C257 | C16 | semidirect |
| 14. Dic257 | C16 | semidirect |
| 20. C257 | C4×C16 | semidirect |
| 37. C4 | #16861630 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#16861630 | 2 |
| C4×#14523346 | 2 |
| C4×C16 | 257 |