Finite Group DatabasebetaFinite Group DatabasebetaOrder 2187.
1139 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C3×#6912 | C3 | 1 | 9 | yes | maximal, complemented |
| 2 | #10624881 | C3 | 1 | 3 | yes | maximal |
| 3 | #10624881 | C3 | 1 | 1 | yes | maximal, characteristic |
| 4 | C32×3−1+2 | C32 | 1 | 9 | yes | — |
| 5 | C32×3−1+2 | C32 | 1 | 3 | yes | — |
| 6 | C32×H(3,𝔽3) | C32 | 1 | 1 | yes | characteristic |
| 7 | #6912 | — | 3 | 81 | no | — |
| 8 | C3×#733 | — | 3 | 27 | no | — |
| 9 | #6893 | — | 3 | 27 | no | — |
| 10 | #6893 | — | 3 | 9 | no | — |
| 11 | #6891 | — | 3 | 9 | no | — |
| 12 | #6891 | — | 3 | 3 | no | — |
| 13 | C34 | H(3,𝔽3) | 1 | 3 | yes | — |
| 14 | C34 | C33 | 1 | 1 | yes | characteristic |
| 15 | C3×3−1+2 | — | 3 | 27 | no | — |
| 16 | C3×3−1+2 | — | 3 | 9 | no | — |
| 17 | C3×3−1+2 | — | 3 | 3 | no | — |
| 18 | C3×3−1+2 | — | 3 | 9 | no | — |
| 19 | C3×3−1+2 | — | 3 | 6 | no | — |
| 20 | C3×3−1+2 | — | 3 | 54 | no | — |
| 21 | C3×3−1+2 | — | 3 | 27 | no | — |
| 22 | C3×3−1+2 | H(3,𝔽3) | 1 | 27 | yes | — |
| 23 | C3×H(3,𝔽3) | — | 3 | 9 | no | — |
| 24 | C3×H(3,𝔽3) | — | 3 | 3 | no | — |
| 25 | C32×C9 | — | 3 | 9 | no | — |
| 26 | C32×C9 | H(3,𝔽3) | 1 | 9 | yes | — |
| 27 | #733 | — | 3 | 243 | no | — |
| 28 | C32⋊C9 | — | 3 | 81 | no | — |
| 29 | C32⋊C9 | — | 3 | 27 | no | — |
| 30 | C33 | — | 3 | 9 | no | — |
| 31 | C33 | — | 3 | 3 | no | — |
| 32 | C33 | — | 27 | 3 | no | — |
| 33 | C33 | — | 27 | 1 | no | — |
| 34 | C33 | C3×H(3,𝔽3) | 1 | 9 | yes | — |
| 35 | C33 | C3×H(3,𝔽3) | 1 | 3 | yes | — |
| 36 | C33 | C3×H(3,𝔽3) | 1 | 1 | yes | characteristic |
| 37 | 3−1+2 | — | 3 | 81 | no | — |
| 38 | 3−1+2 | — | 9 | 9 | no | — |
| 39 | 3−1+2 | — | 9 | 18 | no | — |
| 40 | 3−1+2 | — | 9 | 18 | no | — |
| 41 | 3−1+2 | — | 9 | 9 | no | — |
| 42 | 3−1+2 | — | 9 | 27 | no | — |
| 43 | H(3,𝔽3) | — | 9 | 9 | no | — |
| 44 | C3×C9 | — | 3 | 27 | no | — |
| 45 | C3×C9 | — | 3 | 9 | no | — |
| 46 | C3×C9 | — | 3 | 27 | no | — |
| 47 | C3×C9 | — | 9 | 27 | no | — |
| 48 | C32 | — | 9 | 1 | no | — |
| 49 | C32 | — | 9 | 9 | no | — |
| 50 | C32 | — | 9 | 3 | no | — |
| 51 | C32 | — | 9 | 27 | no | — |
| 52 | C32 | — | 9 | 9 | no | — |
| 53 | C32 | — | 9 | 3 | no | — |
| 54 | C32 | C32⋊H(3,𝔽3) | 1 | 3 | yes | — |
| 55 | C32 | C32⋊H(3,𝔽3) | 1 | 1 | yes | characteristic |
| 56 | C32 | C32⋊H(3,𝔽3) | 1 | 9 | yes | — |
| 57 | C9 | — | 9 | 9 | no | — |
| 58 | C9 | — | 9 | 27 | no | — |
| 59 | C3 | — | 3 | 3 | no | — |
| 60 | C3 | — | 3 | 1 | no | — |
| 61 | C3 | — | 3 | 9 | no | — |
| 62 | C3 | — | 27 | 3 | no | — |
| 63 | C3 | #10624562 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, socle | C3 | #10624562 |
| commutator, Frattini, cosocle | C34 | C33 |
| prime radical | C32×H(3,𝔽3) | C32 |
| LCS | G ▷ C34 ▷ C3 ▷ C1 | |
| UCS | C1 ◁ C3 ◁ C34 ◁ G | |
| LECS | G ▷ C34 ▷ C3 ▷ C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C3×#6912 | C3 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C3×#6912 | 3 |
| #10624881 | 3 |