Finite Group DatabasebetaFinite Group DatabasebetaOrder 252.
20 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C7×C3⋊D3 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | C32×C7 | C4 | 1 | 1 | yes | characteristic, complemented, Hall |
| 3 | D3×C7 | — | 6 | 2 | no | — |
| 4 | #157 | C7 | 1 | 1 | yes | maximal, characteristic, direct product factor, Hall |
| 5 | C4×C7 | — | 9 | 1 | no | maximal, Hall |
| 6 | C3×C7 | — | 2 | 2 | no | — |
| 7 | C3⋊D3 | C2×C7 | 1 | 1 | yes | characteristic |
| 8 | C2×C7 | — | 9 | 1 | no | — |
| 9 | C32 | C4×C7 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 10 | C7 | #157 | 1 | 1 | yes | characteristic, direct product factor, Sylow |
| 11 | D3 | — | 6 | 2 | no | — |
| 12 | C4 | — | 9 | 1 | no | Sylow |
| 13 | C3 | — | 2 | 2 | no | — |
| 14 | C2 | — | 9 | 1 | no | — |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C7 | #157 |
| commutator, hypocenter | C32 | C4×C7 |
| Frattini | C1 | G |
| Fitting, socle | C32×C7 | C4 |
| prime radical | C7×C3⋊D3 | C2 |
| cosocle | C3⋊D3 | C2×C7 |
| LCS | G ▷ C32 | |
| UCS | C1 ◁ C7 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C32×C7 | C4 | semidirect |
| 4. #157 | C7 | direct (N × H) |
| 9. C32 | C4×C7 | semidirect |
| 10. C7 | #157 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C7×C3⋊D3 | 2 |
| #157 | 7 |
| C4×C7 | 9 |