Order 378.
44 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C7⋊H(3,𝔽3) | C2 | 1 | 1 | yes | maximal, characteristic, direct product factor, Hall |
| 2 | C2×C32×C7 | C3 | 1 | 1 | yes | maximal, characteristic, complemented |
| 3 | C2×C3×ΓL(1,𝔽8) | C3 | 1 | 3 | yes | maximal, complemented |
| 4 | C32×C7 | C2×C3 | 1 | 1 | yes | characteristic, complemented |
| 5 | C3×ΓL(1,𝔽8) | C2×C3 | 1 | 3 | yes | complemented |
| 6 | C2×H(3,𝔽3) | — | 7 | 1 | no | maximal, Hall |
| 7 | C2×C3×C7 | — | 3 | 1 | no | — |
| 8 | C2×C3×C7 | C32 | 1 | 1 | yes | characteristic |
| 9 | C2×ΓL(1,𝔽8) | — | 3 | 3 | no | — |
| 10 | H(3,𝔽3) | — | 7 | 1 | no | Sylow |
| 11 | C3×C7 | — | 3 | 1 | no | — |
| 12 | C3×C7 | C2×C32 | 1 | 1 | yes | characteristic |
| 13 | ΓL(1,𝔽8) | — | 3 | 3 | no | — |
| 14 | C2×C32 | — | 7 | 3 | no | — |
| 15 | C2×C32 | ΓL(1,𝔽8) | 1 | 1 | yes | characteristic, complemented |
| 16 | C2×C7 | H(3,𝔽3) | 1 | 1 | yes | characteristic, complemented, Hall |
| 17 | C32 | — | 7 | 3 | no | — |
| 18 | C32 | C2×ΓL(1,𝔽8) | 1 | 1 | yes | characteristic, complemented |
| 19 | C7 | C2×H(3,𝔽3) | 1 | 1 | yes | characteristic, complemented, Sylow |
| 20 | C2×C3 | — | 3 | 1 | no | — |
| 21 | C2×C3 | — | 21 | 3 | no | — |
| 22 | C2×C3 | C3×ΓL(1,𝔽8) | 1 | 1 | yes | characteristic |
| 23 | C3 | — | 3 | 1 | no | — |
| 24 | C3 | — | 21 | 3 | no | — |
| 25 | C3 | C2×C3×ΓL(1,𝔽8) | 1 | 1 | yes | characteristic |
| 26 | C2 | C7⋊H(3,𝔽3) | 1 | 1 | yes | characteristic, direct product factor, Sylow |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C7⋊H(3,𝔽3) | C2 | direct (N × H) |
| 2. C2×C32×C7 | C3 | semidirect |
| 3. C2×C3×ΓL(1,𝔽8) | C3 | semidirect |
| 4. C32×C7 | C2×C3 | semidirect |
| 5. C3×ΓL(1,𝔽8) | C2×C3 | semidirect |
| 15. C2×C32 | ΓL(1,𝔽8) | semidirect |
| 16. C2×C7 | H(3,𝔽3) | semidirect |
| 18. C32 | C2×ΓL(1,𝔽8) | semidirect |
| 19. C7 | C2×H(3,𝔽3) | semidirect |
| 26. C2 | C7⋊H(3,𝔽3) | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C7⋊H(3,𝔽3) | 2 |
| C2×C32×C7 | 3 |
| C2×C3×ΓL(1,𝔽8) | 3 |
| C2×H(3,𝔽3) | 7 |