Order 1440.
73 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | SL(2,𝔽9) | C2 | 1 | 1 | yes | maximal, characteristic, direct product factor |
| 2 | C2×SL(2,𝔽5) | — | 6 | 2 | no | maximal |
| 3 | C2×#622 | — | 10 | 1 | no | maximal |
| 4 | SL(2,𝔽5) | — | 6 | 2 | no | — |
| 5 | C2×#226 | — | 15 | 2 | no | maximal |
| 6 | C2×C3⋊Dic3 | — | 10 | 1 | no | — |
| 7 | #622 | — | 10 | 1 | no | — |
| 8 | #622 | — | 10 | 1 | no | — |
| 9 | C2×SL(2,𝔽3) | — | 15 | 2 | no | — |
| 10 | #226 | — | 15 | 2 | no | — |
| 11 | #226 | — | 15 | 2 | no | — |
| 12 | C2×Dic5 | — | 36 | 1 | no | — |
| 13 | C22×C32 | — | 10 | 1 | no | — |
| 14 | C3⋊Dic3 | — | 10 | 1 | no | — |
| 15 | C3⋊Dic3 | — | 10 | 1 | no | — |
| 16 | C2×Q16 | — | 45 | 1 | no | Sylow |
| 17 | C2×Dic3 | — | 60 | 2 | no | — |
| 18 | SL(2,𝔽3) | — | 15 | 2 | no | — |
| 19 | C22×C5 | — | 36 | 1 | no | — |
| 20 | Dic5 | — | 36 | 1 | no | — |
| 21 | Dic5 | — | 36 | 1 | no | — |
| 22 | C2×C32 | — | 10 | 1 | no | — |
| 23 | C2×C32 | — | 10 | 2 | no | — |
| 24 | C2×Q8 | — | 15 | 2 | no | — |
| 25 | Q16 | — | 45 | 1 | no | — |
| 26 | Q16 | — | 45 | 2 | no | — |
| 27 | Q16 | — | 45 | 1 | no | — |
| 28 | C2×C8 | — | 45 | 1 | no | — |
| 29 | C22×C3 | — | 20 | 2 | no | — |
| 30 | Dic3 | — | 60 | 2 | no | — |
| 31 | Dic3 | — | 60 | 2 | no | — |
| 32 | C2×C5 | — | 36 | 1 | no | — |
| 33 | C2×C5 | — | 36 | 2 | no | — |
| 34 | C32 | — | 10 | 1 | no | Sylow |
| 35 | Q8 | — | 15 | 2 | no | — |
| 36 | Q8 | — | 45 | 2 | no | — |
| 37 | C2×C4 | — | 45 | 1 | no | — |
| 38 | C8 | — | 45 | 1 | no | — |
| 39 | C8 | — | 45 | 1 | no | — |
| 40 | C2×C3 | — | 20 | 2 | no | — |
| 41 | C2×C3 | — | 20 | 4 | no | — |
| 42 | C5 | — | 36 | 1 | no | Sylow |
| 43 | C22 | A6 | 1 | 1 | yes | maximal normal, characteristic |
| 44 | C4 | — | 45 | 1 | no | — |
| 45 | C4 | — | 45 | 1 | no | — |
| 46 | C3 | — | 20 | 2 | no | — |
| 47 | C2 | SL(2,𝔽9) | 1 | 2 | yes | direct product factor |
| 48 | C2 | C2×A6 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, Fitting, socle, hypercenter | C22 | A6 |
| commutator, hypocenter | SL(2,𝔽9) | C2 |
| Frattini, cosocle | C2 | C2×A6 |
| LCS | G ▷ SL(2,𝔽9) | |
| UCS | C1 ◁ C22 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. SL(2,𝔽9) | C2 | direct (N × H) |
| 47. C2 | SL(2,𝔽9) | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| SL(2,𝔽9) | 2 |
| C2×SL(2,𝔽5) | 6 |
| C2×#622 | 10 |
| C2×#226 | 15 |