Finite Group DatabasebetaFinite Group DatabasebetaOrder 20864.
688 conjugacy classes of subgroups; only the 173 normal subgroups are shown.
This group has 688 conjugacy classes of subgroups — too many to draw. Only its 173 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 |
|---|---|---|
| 2. #23781565 | C2 | semidirect |
| 3. #23781556 | C2 | semidirect |
| 4. #23781555 | C2 | semidirect |
| 5. #23781553 | C2 | semidirect |
| 6. #23781545 | C2 | semidirect |
| 7. #23781542 | C2 | semidirect |
| 8. #23781520 | C2 | semidirect |
| 9. #390×C163 | C2 | semidirect |
| 12. C23×Dic163 | C22 | semidirect |
| 13. #19104703 | C4 | semidirect |
| 14. C2×Dic163⋊C4 | C22 | semidirect |
| 17. C2×C22⋊Dic163 | C22 | semidirect |
| 23. C2×C4×Dic163 | C22 | semidirect |
| 24. C163⋊#95 | C22 | semidirect |
| 25. C163⋊#95 | C22 | semidirect |
| 26. C163⋊#95 | C22 | semidirect |
| 28. C2×C4⋊C4×C163 | C22 | semidirect |
| 30. C2×C22⋊C4×C163 | C22 | semidirect |
| 31. C2×C42×C163 | C22 | semidirect |
| 36. C23×D163 | C2×C4 | semidirect |
| 49. C22⋊Dic163 | C2×C4 | semidirect |
| 54. (C2×D163)⋊C4 | C2×C4 | semidirect |
| 149. C163 | #2375 | semidirect |
| 153. #390 | D163 | semidirect |
| 166. C2×C4⋊C4 | C2×D163 | semidirect |
| 176. C2×C22⋊C4 | C2×D163 | semidirect |
| 178. C2×C42 | C2×D163 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#19104703 | 2 |
| #23781565 | 2 |
| #23781556 | 2 |
| #23781555 | 2 |
| #23781553 | 2 |
| #23781545 | 2 |
| #23781542 | 2 |
| #23781520 | 2 |
| #390×C163 | 2 |
| #2375 | 163 |