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. C4×D21 | C2 | semidirect |
| 2. C7×D12 | C2 | semidirect |
| 3. C3×Dic14 | C2 | semidirect |
| 4. #4247 | C2 | semidirect |
| 5. D3×Dic7 | C2 | semidirect |
| 16. Dic14 | D3 | semidirect |
| 28. D12 | D7 | semidirect |
| 31. C3×C7 | #41 | semidirect |
| 46. C7 | #239 | semidirect |
| 55. C3 | #1159 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C4×D21 | 2 |
| C7×D12 | 2 |
| C3×Dic14 | 2 |
| #4247 | 2 |
| D3×Dic7 | 2 |
| #1159 | 3 |
| #239 | 7 |