Order 336.
80 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C2 | C2×D3×D7 |
| commutator, socle, cosocle | C2×C3×C7 | C23 |
| Fitting | C3×C4×C7 | C22 |
| hypercenter | C4 | D3×D7 |
| hypocenter | C3×C7 | #41 |
| LCS | G ▷ C2×C3×C7 ▷ C3×C7 | |
| UCS | C1 ◁ C2 ◁ C4 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. D84 | C2 | semidirect |
| 2. C7×Dic6 | C2 | semidirect |
| 3. C3×C4×D7 | C2 | semidirect |
| 4. #4246 | C2 | semidirect |
| 5. D21⋊C4 | C2 | semidirect |
| 16. C4×D7 | D3 | semidirect |
| 30. Dic6 | D7 | semidirect |
| 31. C3×C7 | #41 | semidirect |
| 46. C7 | #235 | semidirect |
| 55. C3 | #1161 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| D84 | 2 |
| C7×Dic6 | 2 |
| C3×C4×D7 | 2 |
| #4246 | 2 |
| D21⋊C4 | 2 |
| #1161 | 3 |
| #235 | 7 |