Finite Group DatabasebetaFinite Group DatabasebetaOrder 20288.
298 conjugacy classes of subgroups; only the 103 normal subgroups are shown.
This group has 298 conjugacy classes of subgroups — too many to draw. Only its 103 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×#19099573 | C2 | semidirect |
| 2. C2×D4×D317 | C2 | semidirect |
| 3. #23778804 | C2 | direct (N × H) |
| 4. C2×#19099563 | C2 | semidirect |
| 5. C2×#19099562 | C2 | semidirect |
| 6. C2×#19099559 | C2 | semidirect |
| 7. C2×#19099557 | C2 | semidirect |
| 8. C2×D8×C317 | C2 | semidirect |
| 11. #19099573 | C22 | semidirect |
| 12. C2×Dic634 | C22 | semidirect |
| 17. D4×D317 | C22 | semidirect |
| 20. #19099563 | C22 | semidirect |
| 21. #19099562 | C22 | semidirect |
| 22. #19099559 | C22 | semidirect |
| 23. #19099557 | C22 | semidirect |
| 24. C2×#14579261 | C22 | semidirect |
| 26. C2×D4×C317 | C22 | semidirect |
| 27. D8×C317 | C22 | semidirect |
| 28. C2×C8×C317 | C22 | semidirect |
| 34. Dic634 | C23 | semidirect |
| 44. #14579261 | C23 | semidirect |
| 50. D4×C317 | C23 | semidirect |
| 52. C8×C317 | C23 | semidirect |
| 69. C2×C317 | AGL(1,ℤ/8) | semidirect |
| 73. C317 | C2×AGL(1,ℤ/8) | semidirect |
| 81. C2×D8 | D317 | semidirect |
| 93. C2×D4 | C2×D317 | semidirect |
| 99. D8 | C2×D317 | semidirect |
| 102. C2×C8 | C2×D317 | semidirect |
| 118. D4 | C22×D317 | semidirect |
| 126. C8 | C22×D317 | semidirect |
| 145. C2 | #23778804 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#19099573 | 2 |
| C2×D4×D317 | 2 |
| #23778804 | 2 |
| C2×#19099563 | 2 |
| C2×#19099562 | 2 |
| C2×#19099559 | 2 |
| C2×#19099557 | 2 |
| C2×D8×C317 | 2 |
| C2×AGL(1,ℤ/8) | 317 |