Order 32128.
74 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2×C251 | #357 |
| commutator | C16 | C2×C4×C251 |
| Frattini, cosocle | C2×C16 | C22×C251 |
| prime radical | #508×C251 | C2 |
| LCS | G ▷ C16 ▷ C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C251 ◁ C2×C4×C251 ◁ C2×C8×C251 ◁ C2×C16×C251 ◁ G | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. M64×C251 | C2 | semidirect |
| 3. #367×C251 | C2 | semidirect |
| 5. Q32×C251 | C4 | semidirect |
| 7. D16×C251 | C4 | semidirect |
| 36. C251 | #1418 | direct (N × H) |
| 37. #1418 | C251 | direct (N × H) |
| 39. M64 | C2×C251 | semidirect |
| 40. #367 | C2×C251 | semidirect |
| 42. Q32 | C4×C251 | semidirect |
| 44. D16 | C4×C251 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #508×C251 | 2 |
| M64×C251 | 2 |
| #367×C251 | 2 |
| #1418 | 251 |