Finite Group DatabasebetaFinite Group DatabasebetaOrder 252.
28 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C22×C3×C7 | C3 | 1 | 1 | yes | maximal, characteristic, complemented |
| 2 | C7×A4 | C3 | 1 | 3 | yes | maximal, direct product factor |
| 3 | C32×C7 | — | 4 | 1 | no | maximal, Hall |
| 4 | C2×C3×C7 | — | 3 | 1 | no | — |
| 5 | C3×A4 | C7 | 1 | 1 | yes | maximal, characteristic, direct product factor, Hall |
| 6 | C22×C7 | C32 | 1 | 1 | yes | characteristic, complemented, Hall |
| 7 | C3×C7 | — | 4 | 3 | no | — |
| 8 | C3×C7 | A4 | 1 | 1 | yes | characteristic, direct product factor |
| 9 | C2×C7 | — | 3 | 1 | no | — |
| 10 | C22×C3 | C3×C7 | 1 | 1 | yes | characteristic, complemented |
| 11 | A4 | C3×C7 | 1 | 3 | yes | direct product factor |
| 12 | C32 | — | 4 | 1 | no | Sylow |
| 13 | C7 | C3×A4 | 1 | 1 | yes | characteristic, direct product factor, Sylow |
| 14 | C2×C3 | — | 3 | 1 | no | — |
| 15 | C22 | C32×C7 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 16 | C3 | — | 4 | 3 | no | — |
| 17 | C3 | C7×A4 | 1 | 1 | yes | characteristic, direct product factor |
| 18 | C2 | — | 3 | 1 | no | — |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C3×C7 | A4 |
| commutator, cosocle, hypocenter | C22 | C32×C7 |
| Frattini | C1 | G |
| Fitting, socle | C22×C3×C7 | C3 |
| LCS | G ▷ C22 | |
| UCS | C1 ◁ C3×C7 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C22×C3×C7 | C3 | semidirect |
| 2. C7×A4 | C3 | direct (N × H) |
| 5. C3×A4 | C7 | direct (N × H) |
| 6. C22×C7 | C32 | semidirect |
| 8. C3×C7 | A4 | direct (N × H) |
| 10. C22×C3 | C3×C7 | semidirect |
| 11. A4 | C3×C7 | direct (N × H) |
| 13. C7 | C3×A4 | direct (N × H) |
| 15. C22 | C32×C7 | semidirect |
| 17. C3 | C7×A4 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×C3×C7 | 3 |
| C7×A4 | 3 |
| C32×C7 | 4 |
| C3×A4 | 7 |