Order 336.
108 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C22 | D3×D7 |
| commutator, hypocenter | C3×C7 | C22×C4 |
| Frattini | C2 | C2×D3×D7 |
| Fitting, socle | C22×C3×C7 | C22 |
| prime radical | C22×D3×C7 | C2 |
| cosocle | C2×C3×C7 | C23 |
| LCS | G ▷ C3×C7 | |
| UCS | C1 ◁ C22 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C2×Dic21 | C2 | semidirect |
| 3. C2×C3×Dic7 | C2 | semidirect |
| 4. D3×Dic7 | C2 | direct (N × H) |
| 7. C2×D3×C7 | C4 | semidirect |
| 9. Dic21 | C22 | semidirect |
| 10. C3×Dic7 | C22 | semidirect |
| 14. C2×Dic7 | D3 | direct (N × H) |
| 16. C2×C3×C7 | C2×C4 | semidirect |
| 18. D3×C7 | C2×C4 | semidirect |
| 23. Dic7 | C2×D3 | direct (N × H) |
| 28. C3×C7 | C22×C4 | semidirect |
| 31. C2×C7 | C4×D3 | semidirect |
| 34. C2×D3 | Dic7 | direct (N × H) |
| 42. C7 | C2×C4×D3 | semidirect |
| 43. C2×C3 | C2×Dic7 | semidirect |
| 45. D3 | C2×Dic7 | direct (N × H) |
| 51. C3 | C22×Dic7 | semidirect |
| 53. C2 | D3×Dic7 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×D3×C7 | 2 |
| C2×Dic21 | 2 |
| C2×C3×Dic7 | 2 |
| D3×Dic7 | 2 |
| C22×Dic7 | 3 |
| C2×C4×D3 | 7 |