Finite Group DatabasebetaFinite Group DatabasebetaOrder 20864.
656 conjugacy classes of subgroups; only the 145 normal subgroups are shown.
This group has 656 conjugacy classes of subgroups — too many to draw. Only its 145 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×#19104759 | C2 | semidirect |
| 2. #23782213 | C2 | semidirect |
| 3. #127×D163 | C2 | semidirect |
| 4. #23782053 | C2 | semidirect |
| 5. #23782041 | C2 | semidirect |
| 6. #23782038 | C2 | semidirect |
| 7. #23782037 | C2 | semidirect |
| 8. C4×#14579682 | C2 | semidirect |
| 9. #493×C163 | C2 | semidirect |
| 14. C2×#14579688 | C22 | semidirect |
| 15. C2×#14579687 | C22 | semidirect |
| 16. C2×#14579684 | C22 | semidirect |
| 18. #19104735 | C22 | semidirect |
| 22. #19104722 | C22 | semidirect |
| 26. #19104645 | C22 | semidirect |
| 27. C4×C163⋊C8 | C22 | semidirect |
| 28. C2×D8×C163 | C22 | semidirect |
| 30. #127×C163 | C22 | semidirect |
| 31. C4×C8×C163 | C22 | semidirect |
| 48. #14579682 | D4 | semidirect |
| 77. C163⋊C8 | C2×D4 | semidirect |
| 86. C8×C163 | C2×D4 | semidirect |
| 97. C4×C163 | AGL(1,ℤ/8) | semidirect |
| 108. C163 | #3151 | semidirect |
| 115. #493 | D163 | semidirect |
| 126. C2×D8 | C2×D163 | semidirect |
| 133. #127 | C2×D163 | semidirect |
| 140. C4×C8 | C2×D163 | semidirect |
| 195. C8 | D4×D163 | semidirect |
| 209. C4 | #19104759 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#19104759 | 2 |
| #23782213 | 2 |
| #127×D163 | 2 |
| #23782053 | 2 |
| #23782041 | 2 |
| #23782038 | 2 |
| #23782037 | 2 |
| C4×#14579682 | 2 |
| #493×C163 | 2 |
| #3151 | 163 |