Order 486.
130 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C9×H(3,𝔽3) | C2 | 1 | 1 | yes | maximal, characteristic, complemented, Sylow |
| 2 | C3×#272 | C3 | 1 | 1 | yes | maximal, characteristic |
| 3 | C3×D3×C9 | — | 3 | 4 | no | maximal |
| 4 | C3×H(3,𝔽3) | C2×C3 | 1 | 1 | yes | characteristic |
| 5 | C32×C9 | D3 | 1 | 4 | yes | complemented |
| 6 | C32⋊C9 | — | 2 | 4 | no | — |
| 7 | C32×D3 | — | 3 | 4 | no | — |
| 8 | C2×C3×C9 | — | 9 | 1 | no | — |
| 9 | #272 | C9 | 1 | 1 | yes | characteristic, direct product factor |
| 10 | D3×C9 | — | 3 | 12 | no | — |
| 11 | C33 | C3×D3 | 1 | 4 | yes | — |
| 12 | H(3,𝔽3) | — | 2 | 4 | no | — |
| 13 | H(3,𝔽3) | C2×C9 | 1 | 1 | yes | characteristic, complemented |
| 14 | C3×C9 | — | 2 | 4 | no | — |
| 15 | C3×C9 | — | 3 | 12 | no | — |
| 16 | C3×C9 | C3⋊D3 | 1 | 1 | yes | characteristic |
| 17 | C2×C32 | — | 9 | 1 | no | — |
| 18 | C3×D3 | — | 3 | 4 | no | — |
| 19 | C3×D3 | — | 3 | 8 | no | — |
| 20 | C3×D3 | — | 3 | 4 | no | — |
| 21 | C2×C9 | — | 9 | 3 | no | — |
| 22 | C32 | — | 2 | 4 | no | — |
| 23 | C32 | — | 3 | 4 | no | — |
| 24 | C32 | — | 3 | 8 | no | — |
| 25 | C32 | D3×C9 | 1 | 4 | yes | complemented |
| 26 | C32 | C3×C3⋊D3 | 1 | 1 | yes | characteristic |
| 27 | C9 | — | 6 | 4 | no | — |
| 28 | C9 | #272 | 1 | 3 | yes | direct product factor |
| 29 | C2×C3 | — | 9 | 1 | no | — |
| 30 | C2×C3 | — | 9 | 1 | no | — |
| 31 | C2×C3 | — | 9 | 2 | no | — |
| 32 | D3 | — | 3 | 4 | no | — |
| 33 | C3 | — | 3 | 4 | no | — |
| 34 | C3 | — | 6 | 4 | no | — |
| 35 | C3 | C9×C3⋊D3 | 1 | 1 | yes | characteristic |
| 36 | C3 | C3×#272 | 1 | 1 | yes | characteristic |
| 37 | C3 | #4208 | 1 | 2 | yes | — |
| 38 | C2 | — | 9 | 1 | no | Sylow |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C3×C9 | C3⋊D3 |
| commutator, hypocenter | H(3,𝔽3) | C2×C9 |
| Frattini, socle | C32 | C3×C3⋊D3 |
| Fitting | C9×H(3,𝔽3) | C2 |
| prime radical | C3×#272 | C3 |
| cosocle | C3×H(3,𝔽3) | C2×C3 |
| LCS | G ▷ H(3,𝔽3) | |
| UCS | C1 ◁ C3×C9 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C9×H(3,𝔽3) | C2 | semidirect |
| 5. C32×C9 | D3 | semidirect |
| 9. #272 | C9 | direct (N × H) |
| 13. H(3,𝔽3) | C2×C9 | semidirect |
| 25. C32 | D3×C9 | semidirect |
| 28. C9 | #272 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C9×H(3,𝔽3) | 2 |
| C3×#272 | 3 |
| C3×D3×C9 | 3 |