Order 32128.
564 conjugacy classes of subgroups.
The subgroup lattice has 124 nodes — too large to display as a diagram.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4×C251 | C24 |
| commutator | C2 | C22×C42×C251 |
| Frattini, cosocle | C2×C4 | C24×C251 |
| socle | C22×C251 | C23×C4 |
| prime radical | C24×C251 | C2×C4 |
| LCS | G ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4×C251 ◁ G | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 3. #405×C251 | C2 | semidirect |
| 4. C4×M16×C251 | C2 | semidirect |
| 6. C2×M16×C251 | C4 | semidirect |
| 15. #97×C251 | C22 | semidirect |
| 16. C4×C8×C251 | C22 | semidirect |
| 25. M16×C251 | C2×C4 | semidirect |
| 26. C2×C8×C251 | C2×C4 | semidirect |
| 61. C251 | #2873 | direct (N × H) |
| 62. #2873 | C251 | direct (N × H) |
| 65. #405 | C2×C251 | semidirect |
| 66. C4×M16 | C2×C251 | semidirect |
| 68. C2×M16 | C4×C251 | semidirect |
| 77. #97 | C22×C251 | semidirect |
| 78. C4×C8 | C22×C251 | semidirect |
| 87. M16 | C2×C4×C251 | semidirect |
| 88. C2×C8 | C2×C4×C251 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×M16×C251 | 2 |
| C2×#117×C251 | 2 |
| #405×C251 | 2 |
| C4×M16×C251 | 2 |
| #2873 | 251 |