Finite Group DatabasebetaFinite Group DatabasebetaOrder 2187.
7670 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | H(3,𝔽9) | C3 | 1 | 81 | yes | maximal, direct product factor |
| 2 | C3×C32⋊H(3,𝔽3) | C3 | 1 | 40 | yes | maximal, complemented |
| 3 | C35 | C32 | 1 | 10 | yes | complemented |
| 4 | C32×H(3,𝔽3) | C32 | 1 | 120 | yes | complemented |
| 5 | C32⋊H(3,𝔽3) | C32 | 1 | 1080 | yes | complemented |
| 6 | C34 | — | 9 | 120 | no | — |
| 7 | C34 | C33 | 1 | 40 | yes | — |
| 8 | C34 | C33 | 1 | 90 | yes | complemented |
| 9 | C3×H(3,𝔽3) | — | 9 | 360 | no | — |
| 10 | C3×H(3,𝔽3) | C33 | 1 | 1080 | yes | complemented |
| 11 | C33 | — | 3 | 480 | no | — |
| 12 | C33 | — | 9 | 360 | no | — |
| 13 | C33 | — | 9 | 810 | no | — |
| 14 | C33 | C34 | 1 | 120 | yes | — |
| 15 | C33 | C34 | 1 | 1 | yes | characteristic |
| 16 | H(3,𝔽3) | — | 9 | 1080 | no | — |
| 17 | C32 | — | 3 | 480 | no | — |
| 18 | C32 | — | 9 | 810 | no | — |
| 19 | C32 | — | 9 | 360 | no | — |
| 20 | C32 | H(5,𝔽3) | 1 | 12 | yes | — |
| 21 | C32 | C35 | 1 | 1 | yes | characteristic |
| 22 | C3 | — | 9 | 120 | no | — |
| 23 | C3 | H(3,𝔽9) | 1 | 9 | yes | direct product factor |
| 24 | C3 | C3×H(5,𝔽3) | 1 | 4 | yes | — |
| subgroup | G/H | |
|---|---|---|
| center, socle | C33 | C34 |
| commutator, Frattini, cosocle | C32 | C35 |
| LCS | G ▷ C32 ▷ C1 | |
| UCS | C1 ◁ C33 ◁ G | |
| LECS | G ▷ C32 ▷ C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. H(3,𝔽9) | C3 | direct (N × H) |
| 2. C3×C32⋊H(3,𝔽3) | C3 | semidirect |
| 3. C35 | C32 | semidirect |
| 4. C32×H(3,𝔽3) | C32 | semidirect |
| 5. C32⋊H(3,𝔽3) | C32 | semidirect |
| 8. C34 | C33 | semidirect |
| 10. C3×H(3,𝔽3) | C33 | semidirect |
| 23. C3 | H(3,𝔽9) | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| H(3,𝔽9) | 3 |
| C3×C32⋊H(3,𝔽3) | 3 |