Finite Group DatabasebetaFinite Group DatabasebetaOrder 31712.
76 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C22×C4×C991 | C2 | 1 | 3 | yes | maximal |
| 2 | C23×C991 | C22 | 1 | 1 | yes | characteristic |
| 3 | C2×C4×C991 | — | 2 | 6 | no | — |
| 4 | C2×C4×C991 | C4 | 1 | 6 | yes | complemented |
| 5 | C22×C991 | C2×C4 | 1 | 3 | yes | — |
| 6 | C22×C991 | D4 | 1 | 3 | yes | — |
| 7 | C22×C991 | Q8 | 1 | 1 | yes | characteristic |
| 8 | C4×C991 | — | 2 | 6 | no | — |
| 9 | C2×C991 | C42 | 1 | 1 | yes | characteristic |
| 10 | C2×C991 | C22⋊C4 | 1 | 3 | yes | — |
| 11 | C2×C991 | C4⋊C4 | 1 | 3 | yes | — |
| 12 | C991 | #95 | 1 | 1 | yes | characteristic, direct product factor, Sylow |
| 13 | #95 | C991 | 1 | 1 | yes | maximal, characteristic, direct product factor, Sylow |
| 14 | C22×C4 | C2×C991 | 1 | 3 | yes | — |
| 15 | C23 | C22×C991 | 1 | 1 | yes | characteristic |
| 16 | C2×C4 | — | 2 | 6 | no | — |
| 17 | C2×C4 | C4×C991 | 1 | 6 | yes | complemented |
| 18 | C22 | C2×C4×C991 | 1 | 3 | yes | — |
| 19 | C22 | D4×C991 | 1 | 3 | yes | — |
| 20 | C22 | Q8×C991 | 1 | 1 | yes | characteristic |
| 21 | C4 | — | 2 | 6 | no | — |
| 22 | C2 | C42×C991 | 1 | 1 | yes | characteristic |
| 23 | C2 | C22⋊C4×C991 | 1 | 3 | yes | — |
| 24 | C2 | C4⋊C4×C991 | 1 | 3 | yes | — |
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23×C991 | C22 |
| commutator | C2 | C42×C991 |
| Frattini, cosocle | C23 | C22×C991 |
| LCS | G ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23×C991 ◁ G | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 4. C2×C4×C991 | C4 | semidirect |
| 12. C991 | #95 | direct (N × H) |
| 13. #95 | C991 | direct (N × H) |
| 17. C2×C4 | C4×C991 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×C4×C991 | 2 |
| #95 | 991 |