Order 32128.
96 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C4×C251⋊C16 | C2 | 1 | 2 | yes | maximal |
| 2 | C82×C251 | C2 | 1 | 1 | yes | maximal, characteristic |
| 3 | C2×C251⋊C16 | C4 | 1 | 4 | yes | — |
| 4 | C4×C8×C251 | C4 | 1 | 2 | yes | — |
| 5 | C4×C8×C251 | C22 | 1 | 1 | yes | characteristic |
| 6 | C251⋊C16 | C8 | 1 | 8 | yes | complemented |
| 7 | C2×C8×C251 | C8 | 1 | 4 | yes | — |
| 8 | C2×C8×C251 | C2×C4 | 1 | 2 | yes | — |
| 9 | C42×C251 | C2×C4 | 1 | 1 | yes | characteristic |
| 10 | C2×C4×C251 | C42 | 1 | 1 | yes | characteristic |
| 11 | C2×C4×C251 | C2×C8 | 1 | 2 | yes | — |
| 12 | C8×C251 | — | 2 | 4 | no | — |
| 13 | C8×C251 | C2×C8 | 1 | 4 | yes | — |
| 14 | C22×C251 | C4×C8 | 1 | 1 | yes | characteristic |
| 15 | C4×C251 | C4×C8 | 1 | 2 | yes | — |
| 16 | C4×C251 | M32 | 1 | 4 | yes | — |
| 17 | C2×C251 | C82 | 1 | 1 | yes | characteristic |
| 18 | C2×C251 | #346 | 1 | 2 | yes | — |
| 19 | C251 | #1311 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 20 | #1311 | — | 251 | 1 | no | maximal, Sylow |
| 21 | C4×C16 | — | 251 | 2 | no | — |
| 22 | C82 | D251 | 1 | 1 | yes | characteristic |
| 23 | C2×C16 | — | 251 | 4 | no | — |
| 24 | C4×C8 | Dic251 | 1 | 2 | yes | — |
| 25 | C4×C8 | C2×D251 | 1 | 1 | yes | characteristic |
| 26 | C2×C8 | C251⋊C8 | 1 | 4 | yes | — |
| 27 | C2×C8 | C4×D251 | 1 | 2 | yes | — |
| 28 | C42 | C2×Dic251 | 1 | 1 | yes | characteristic |
| 29 | C16 | — | 251 | 8 | no | — |
| 30 | C2×C4 | C4×Dic251 | 1 | 1 | yes | characteristic |
| 31 | C2×C4 | C2×C251⋊C8 | 1 | 2 | yes | — |
| 32 | C8 | — | 2 | 4 | no | — |
| 33 | C8 | C8×D251 | 1 | 4 | yes | — |
| 34 | C22 | C4×C251⋊C8 | 1 | 1 | yes | characteristic |
| 35 | C4 | C8×Dic251 | 1 | 2 | yes | — |
| 36 | C4 | #22548655 | 1 | 4 | yes | — |
| 37 | C2 | C8×C251⋊C8 | 1 | 1 | yes | characteristic |
| 38 | C2 | #30631463 | 1 | 2 | yes | — |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 6. C251⋊C16 | C8 | semidirect |
| 19. C251 | #1311 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C4×C251⋊C16 | 2 |
| C82×C251 | 2 |
| #1311 | 251 |