Order 31712.
130 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C22 | C22×D991 |
| commutator, socle, cosocle | C22×C991 | C23 |
| Fitting | C22⋊C4×C991 | C2 |
| hypercenter | C22⋊C4 | D991 |
| hypocenter | C991 | #120 |
| LCS | G ▷ C22×C991 ▷ C991 | |
| UCS | C1 ◁ C22 ◁ C22⋊C4 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C23×D991 | C2 | semidirect |
| 2. C2×D3964 | C2 | semidirect |
| 3. C2×C22⋊D991 | C2 | semidirect |
| 4. (C2×D991)⋊C4 | C2 | semidirect |
| 5. C22⋊C4×C991 | C2 | semidirect |
| 9. C22×D991 | C22 | semidirect |
| 12. C2×Dic991 | C22 | semidirect |
| 14. C2×C4×C991 | C22 | semidirect |
| 16. C22×C991 | D4 | semidirect |
| 23. C2×D991 | D4 | semidirect |
| 31. C991 | #120 | semidirect |
| 37. C22⋊C4 | D991 | semidirect |
| 46. C2×C4 | C2×D991 | semidirect |
| 54. C22 | D3964 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C23×D991 | 2 |
| C2×D3964 | 2 |
| C2×C22⋊D991 | 2 |
| (C2×D991)⋊C4 | 2 |
| C22⋊C4×C991 | 2 |
| #120 | 991 |