Finite Group DatabasebetaFinite Group DatabasebetaOrder 20864.
476 conjugacy classes of subgroups; only the 344 normal subgroups are shown.
This group has 476 conjugacy classes of subgroups — too many to draw. Only its 344 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C163 | C22×D4 |
| commutator | C4 | C23×C4×C163 |
| Frattini, cosocle | C2×C4 | C24×C163 |
| prime radical | C2×#41×C163 | C22 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C163 ◁ C2×#41×C163 ◁ G | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 3. #428×C163 | C2 | semidirect |
| 4. #427×C163 | C2 | semidirect |
| 5. C2×#107×C163 | C2 | semidirect |
| 7. #131×C163 | C4 | semidirect |
| 24. M16×C163 | C2×C4 | semidirect |
| 25. C2×C8×C163 | C2×C4 | semidirect |
| 58. C163 | #2913 | direct (N × H) |
| 59. #2913 | C163 | direct (N × H) |
| 62. #428 | C2×C163 | semidirect |
| 63. #427 | C2×C163 | semidirect |
| 64. C2×#107 | C2×C163 | semidirect |
| 66. #131 | C4×C163 | semidirect |
| 83. M16 | C2×C4×C163 | semidirect |
| 84. C2×C8 | C2×C4×C163 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#131×C163 | 2 |
| #520×C163 | 2 |
| #428×C163 | 2 |
| #427×C163 | 2 |
| C2×#107×C163 | 2 |
| #2913 | 163 |