Order 25664.
794 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C2 | C24×D401 |
| commutator, socle, cosocle | C2×C401 | C25 |
| Fitting | 2−1+4×C401 | C2 |
| hypercenter | 2−1+4 | D401 |
| hypocenter | C401 | C2×2−1+4 |
| LCS | G ▷ C2×C401 ▷ C401 | |
| UCS | C1 ◁ C2 ◁ 2−1+4 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. #27165785 | C2 | semidirect |
| 2. #27165784 | C2 | semidirect |
| 3. #41×D401 | C2 | semidirect |
| 4. C2×Q8×D401 | C2 | semidirect |
| 5. 2−1+4×C401 | C2 | semidirect |
| 6. #20264367 | C22 | semidirect |
| 7. #20264366 | C22 | semidirect |
| 8. #20264365 | C22 | semidirect |
| 9. C2×Dic802 | C22 | semidirect |
| 11. Q8×D401 | C22 | semidirect |
| 14. #41×C401 | C22 | semidirect |
| 15. C2×Q8×C401 | C22 | semidirect |
| 35. D401 | 2−1+4 | direct (N × H) |
| 36. C401 | C2×2−1+4 | semidirect |
| 40. 2−1+4 | D401 | direct (N × H) |
| 46. #41 | C2×D401 | semidirect |
| 50. C2×Q8 | C2×D401 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #27165785 | 2 |
| #27165784 | 2 |
| #41×D401 | 2 |
| C2×Q8×D401 | 2 |
| 2−1+4×C401 | 2 |
| C2×2−1+4 | 401 |