Order 32896.
258 conjugacy classes of subgroups; only the 56 normal subgroups are shown.
This group has 258 conjugacy classes of subgroups — too many to draw. Only its 56 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2×C257 | B(4,𝔽2) |
| commutator, Frattini, cosocle | C2×D4 | C23×C257 |
| prime radical | B(4,𝔽2)×C257 | C2 |
| LCS | G ▷ C2×D4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C257 ◁ C22×C257 ◁ C2×D4×C257 ◁ G | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. #551×C257 | C2 | semidirect |
| 2. #458×C257 | C2 | semidirect |
| 4. #455×C257 | C2 | semidirect |
| 5. #354×C257 | C2 | semidirect |
| 6. #352×C257 | C2 | semidirect |
| 7. AΣL(1,𝔽16)×C257 | C2 | semidirect |
| 30. C2×Q8×C257 | D4 | semidirect |
| 39. C22×C4×C257 | D4 | semidirect |
| 59. C22⋊C4×C257 | D4 | semidirect |
| 61. C42×C257 | D4 | semidirect |
| 121. C257 | #2197 | direct (N × H) |
| 122. #2197 | C257 | direct (N × H) |
| 123. #551 | C2×C257 | semidirect |
| 124. #458 | C2×C257 | semidirect |
| 126. #455 | C2×C257 | semidirect |
| 127. #354 | C2×C257 | semidirect |
| 128. #352 | C2×C257 | semidirect |
| 129. AΣL(1,𝔽16) | C2×C257 | semidirect |
| 152. C2×Q8 | D4×C257 | semidirect |
| 161. C22×C4 | D4×C257 | semidirect |
| 181. C22⋊C4 | D4×C257 | semidirect |
| 183. C42 | D4×C257 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #551×C257 | 2 |
| #458×C257 | 2 |
| B(4,𝔽2)×C257 | 2 |
| #455×C257 | 2 |
| #354×C257 | 2 |
| #352×C257 | 2 |
| AΣL(1,𝔽16)×C257 | 2 |
| #2197 | 257 |