Finite Group DatabasebetaFinite Group DatabasebetaOrder 20864.
752 conjugacy classes of subgroups; only the 177 normal subgroups are shown.
This group has 752 conjugacy classes of subgroups — too many to draw. Only its 177 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C23 | C23×D163 |
| commutator, socle, cosocle | C23×C163 | C24 |
| Fitting | #390×C163 | C2 |
| prime radical | C2×#19104731 | C2 |
| hypercenter | #390 | D163 |
| hypocenter | C163 | #2858 |
| LCS | G ▷ C23×C163 ▷ C163 | |
| UCS | C1 ◁ C23 ◁ #390 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×#19104734 | C2 | semidirect |
| 3. C2×#19104721 | C2 | semidirect |
| 4. #23781568 | C2 | semidirect |
| 5. #23781567 | C2 | semidirect |
| 6. #23781566 | C2 | semidirect |
| 7. #23781565 | C2 | semidirect |
| 8. C42×Dic163 | C2 | semidirect |
| 9. #390×C163 | C2 | semidirect |
| 52. C4×Dic163 | D4 | semidirect |
| 113. C4×C163 | #124 | semidirect |
| 116. Dic163 | #124 | semidirect |
| 125. C163 | #2858 | semidirect |
| 134. #390 | D163 | semidirect |
| 243. C4 | #19104721 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#19104734 | 2 |
| C2×#19104731 | 2 |
| C2×#19104721 | 2 |
| #23781568 | 2 |
| #23781567 | 2 |
| #23781566 | 2 |
| #23781565 | 2 |
| C42×Dic163 | 2 |
| #390×C163 | 2 |
| #2858 | 163 |