Finite Group DatabasebetaFinite Group DatabasebetaOrder 2187.
296 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C3×#6864 | C3 | 1 | 2 | yes | maximal |
| 2 | C3×C9×C27 | C3 | 1 | 1 | yes | maximal, characteristic |
| 3 | #10624544 | C3 | 1 | 1 | yes | maximal, characteristic |
| 4 | #10624463 | C3 | 1 | 9 | yes | maximal |
| 5 | C32×C27 | C32 | 1 | 3 | yes | — |
| 6 | C32×C27 | C32 | 1 | 6 | yes | — |
| 7 | C3×C92 | C32 | 1 | 3 | yes | — |
| 8 | C3×C92 | C32 | 1 | 1 | yes | characteristic |
| 9 | #6864 | C9 | 1 | 18 | yes | complemented |
| 10 | C9×C27 | C9 | 1 | 9 | yes | complemented |
| 11 | #6855 | C9 | 1 | 9 | yes | — |
| 12 | C32×C9 | C3×C9 | 1 | 9 | yes | — |
| 13 | C32×C9 | C3×C9 | 1 | 3 | yes | — |
| 14 | C32×C9 | C33 | 1 | 1 | yes | characteristic |
| 15 | C3×C27 | — | 3 | 9 | no | — |
| 16 | C3×C27 | — | 3 | 18 | no | — |
| 17 | C3×C27 | C3×C9 | 1 | 9 | yes | — |
| 18 | C3×C27 | C3×C9 | 1 | 18 | yes | — |
| 19 | C92 | — | 3 | 9 | no | — |
| 20 | C92 | C3×C9 | 1 | 3 | yes | — |
| 21 | C92 | C3×C9 | 1 | 6 | yes | — |
| 22 | C33 | C32×C9 | 1 | 1 | yes | characteristic |
| 23 | C3×C9 | — | 3 | 9 | no | — |
| 24 | C3×C9 | — | 3 | 9 | no | — |
| 25 | C3×C9 | — | 3 | 27 | no | — |
| 26 | C3×C9 | C92 | 1 | 9 | yes | — |
| 27 | C3×C9 | C32×C9 | 1 | 1 | yes | characteristic |
| 28 | C3×C9 | C32×C9 | 1 | 2 | yes | — |
| 29 | C3×C9 | #737 | 1 | 9 | yes | — |
| 30 | C27 | — | 3 | 9 | no | — |
| 31 | C27 | — | 3 | 18 | no | — |
| 32 | C32 | C3×C92 | 1 | 1 | yes | characteristic |
| 33 | C32 | #6887 | 1 | 3 | yes | — |
| 34 | C32 | #6903 | 1 | 9 | yes | — |
| 35 | C9 | — | 3 | 9 | no | — |
| 36 | C9 | — | 9 | 9 | no | — |
| 37 | C9 | #6887 | 1 | 3 | yes | — |
| 38 | C9 | #6887 | 1 | 6 | yes | — |
| 39 | C3 | #10624544 | 1 | 1 | yes | characteristic |
| 40 | C3 | #10624681 | 1 | 3 | yes | — |
| 41 | C3 | #10624713 | 1 | 9 | yes | — |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C32×C9 | C33 |
| commutator | C32 | C3×C92 |
| socle, prime radical | C33 | C32×C9 |
| LCS | G ▷ C32 ▷ C1 | |
| UCS | C1 ◁ C32×C9 ◁ G | |
| LECS | G ▷ C32×C9 ▷ C3 ▷ C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 9. #6864 | C9 | semidirect |
| 10. C9×C27 | C9 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C3×#6864 | 3 |
| C3×C9×C27 | 3 |
| #10624544 | 3 |
| #10624463 | 3 |