Finite Group DatabasebetaFinite Group DatabasebetaOrder 20288.
14 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | #23778686 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | C16×C317 | C4 | 1 | 1 | yes | characteristic |
| 3 | C8×C317 | C8 | 1 | 1 | yes | characteristic |
| 4 | C4×C317 | C16 | 1 | 1 | yes | characteristic |
| 5 | C2×C317 | C32 | 1 | 1 | yes | characteristic |
| 6 | C317 | C64 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 7 | C64 | — | 317 | 1 | no | maximal, Sylow |
| 8 | C32 | — | 317 | 1 | no | — |
| 9 | C16 | #11929639 | 1 | 1 | yes | characteristic |
| 10 | C8 | #14579268 | 1 | 1 | yes | characteristic |
| 11 | C4 | #19099577 | 1 | 1 | yes | characteristic |
| 12 | C2 | #23778830 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C16 | #11929639 |
| commutator, hypocenter | C317 | C64 |
| Fitting | C16×C317 | C4 |
| socle, prime radical | C2×C317 | C32 |
| cosocle | #23778686 | C2 |
| LCS | G ▷ C317 | |
| UCS | C1 ◁ C16 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 6. C317 | C64 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #23778686 | 2 |
| C64 | 317 |