Order 17792.
224 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2×C139 | B(4,𝔽2) |
| commutator, Frattini, cosocle | C2×Q8 | C23×C139 |
| prime radical | 2−1+4×C139 | C22 |
| LCS | G ▷ C2×Q8 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C139 ◁ C22×C139 ◁ C2×Q8×C139 ◁ G | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. Q82×C139 | C2 | semidirect |
| 3. #356×C139 | C2 | semidirect |
| 46. C139 | #2205 | direct (N × H) |
| 47. #2205 | C139 | direct (N × H) |
| 48. Q82 | C2×C139 | semidirect |
| 50. #356 | C2×C139 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| Q82×C139 | 2 |
| #456×C139 | 2 |
| #356×C139 | 2 |
| #2205 | 139 |