Order 336.
44 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C8 | D21 |
| commutator, hypocenter | C3×C7 | C2×C8 |
| Frattini | C4 | C2×D21 |
| Fitting | C3×C7×C8 | C2 |
| socle | C2×C3×C7 | C2×C4 |
| prime radical | C2×D21 | C4 |
| cosocle | C3×C4×C7 | C22 |
| LCS | G ▷ C3×C7 | |
| UCS | C1 ◁ C8 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C3×C7×C8 | C2 | semidirect |
| 3. C3⋊(C7⋊C8) | C2 | semidirect |
| 9. C7×C8 | D3 | semidirect |
| 13. D21 | C8 | direct (N × H) |
| 18. C3×C8 | D7 | semidirect |
| 20. C3×C7 | C2×C8 | semidirect |
| 29. C8 | D21 | direct (N × H) |
| 30. C7 | D3×C8 | semidirect |
| 36. C3 | C8×D7 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C4×D21 | 2 |
| C3×C7×C8 | 2 |
| C3⋊(C7⋊C8) | 2 |
| C8×D7 | 3 |
| D3×C8 | 7 |