Order 17728.
100 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2×C277 | #121 |
| commutator, Frattini, cosocle | C2×C4 | C23×C277 |
| prime radical | #41×C277 | C22 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C277 ◁ C2×C4×C277 ◁ G | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C2×Q16×C277 | C2 | semidirect |
| 4. #108×C277 | C2 | semidirect |
| 5. #101×C277 | C2 | semidirect |
| 38. C277 | #473 | direct (N × H) |
| 39. #473 | C277 | direct (N × H) |
| 41. C2×Q16 | C2×C277 | semidirect |
| 43. #108 | C2×C277 | semidirect |
| 44. #101 | C2×C277 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #137×C277 | 2 |
| C2×Q16×C277 | 2 |
| #131×C277 | 2 |
| #108×C277 | 2 |
| #101×C277 | 2 |
| #473 | 277 |