Order 336.
44 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2×C4 | D21 |
| commutator, hypocenter | C3×C7 | C2×C8 |
| Frattini | C4 | C2×D21 |
| Fitting | C2×C3×C4×C7 | C2 |
| socle, prime radical | C22×C3×C7 | C4 |
| cosocle | C3×C4×C7 | C22 |
| LCS | G ▷ C3×C7 | |
| UCS | C1 ◁ C2×C4 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C3⋊(C7⋊C8) | C2 | direct (N × H) |
| 10. C2×C3×C7 | C8 | semidirect |
| 17. C3×C7 | C2×C8 | semidirect |
| 19. C2×C7 | C3⋊C8 | semidirect |
| 26. C7 | C2×C3⋊C8 | semidirect |
| 27. C2×C3 | C7⋊C8 | semidirect |
| 32. C3 | C2×C7⋊C8 | semidirect |
| 33. C2 | C3⋊(C7⋊C8) | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C3×C4×C7 | 2 |
| C3⋊(C7⋊C8) | 2 |
| C2×C7⋊C8 | 3 |
| C2×C3⋊C8 | 7 |