Finite Group DatabasebetaFinite Group DatabasebetaOrder 256.
95 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | #2050 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | #1327 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 3 | #1307 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 4 | #575 | C4 | 1 | 1 | yes | characteristic |
| 5 | #432 | — | 2 | 1 | no | — |
| 6 | #423 | C22 | 1 | 1 | yes | characteristic |
| 7 | C2×#104 | — | 2 | 1 | no | — |
| 8 | #413 | — | 2 | 1 | no | — |
| 9 | #349 | — | 2 | 1 | no | — |
| 10 | #338 | C4 | 1 | 1 | yes | characteristic |
| 11 | C2×#41 | — | 2 | 1 | no | — |
| 12 | #137 | — | 4 | 1 | no | — |
| 13 | AGL(1,ℤ/8) | — | 4 | 1 | no | — |
| 14 | #135 | — | 4 | 1 | no | — |
| 15 | C2×M16 | — | 2 | 1 | no | — |
| 16 | C2×M16 | C2×C4 | 1 | 1 | yes | characteristic |
| 17 | C2×M16 | D4 | 1 | 1 | yes | characteristic |
| 18 | C2×C42 | D4 | 1 | 1 | yes | characteristic |
| 19 | M32 | — | 4 | 1 | no | — |
| 20 | C4⋊C8 | — | 4 | 1 | no | — |
| 21 | C4⋊C8 | — | 4 | 1 | no | — |
| 22 | #104 | — | 4 | 1 | no | — |
| 23 | #104 | — | 4 | 1 | no | — |
| 24 | #101 | — | 4 | 1 | no | — |
| 25 | #100 | — | 4 | 1 | no | — |
| 26 | C22⋊C8 | — | 2 | 2 | no | — |
| 27 | #97 | — | 4 | 1 | no | — |
| 28 | #41 | — | 4 | 1 | no | — |
| 29 | #41 | — | 4 | 1 | no | — |
| 30 | #41 | — | 4 | 1 | no | — |
| 31 | #41 | — | 4 | 1 | no | — |
| 32 | C2×Q8 | — | 2 | 1 | no | — |
| 33 | C2×D4 | — | 2 | 1 | no | — |
| 34 | C2×D4 | — | 4 | 1 | no | — |
| 35 | C22×C4 | — | 2 | 1 | no | — |
| 36 | C22×C4 | — | 4 | 1 | no | — |
| 37 | C22×C4 | C22⋊C4 | 1 | 1 | yes | characteristic |
| 38 | Q16 | — | 4 | 1 | no | — |
| 39 | SD16 | — | 4 | 2 | no | — |
| 40 | D8 | — | 4 | 1 | no | — |
| 41 | M16 | — | 4 | 1 | no | — |
| 42 | M16 | — | 4 | 1 | no | — |
| 43 | M16 | — | 4 | 1 | no | — |
| 44 | M16 | — | 4 | 1 | no | — |
| 45 | C2×C8 | — | 2 | 1 | no | — |
| 46 | C2×C8 | — | 2 | 1 | no | — |
| 47 | C2×C8 | — | 4 | 2 | no | — |
| 48 | C2×C8 | — | 4 | 1 | no | — |
| 49 | C42 | — | 2 | 1 | no | — |
| 50 | C42 | D8 | 1 | 1 | yes | characteristic |
| 51 | C42 | SD16 | 1 | 1 | yes | characteristic |
| 52 | C16 | — | 8 | 1 | no | — |
| 53 | C23 | — | 4 | 1 | no | — |
| 54 | C23 | #104 | 1 | 1 | yes | characteristic |
| 55 | Q8 | — | 4 | 1 | no | — |
| 56 | Q8 | — | 4 | 1 | no | — |
| 57 | D4 | — | 4 | 1 | no | — |
| 58 | D4 | — | 4 | 1 | no | — |
| 59 | D4 | — | 8 | 1 | no | — |
| 60 | D4 | — | 8 | 1 | no | — |
| 61 | C2×C4 | — | 2 | 1 | no | — |
| 62 | C2×C4 | — | 2 | 1 | no | — |
| 63 | C2×C4 | — | 2 | 1 | no | — |
| 64 | C2×C4 | — | 2 | 1 | no | — |
| 65 | C2×C4 | — | 4 | 1 | no | — |
| 66 | C2×C4 | — | 8 | 1 | no | — |
| 67 | C2×C4 | — | 8 | 1 | no | — |
| 68 | C2×C4 | — | 8 | 1 | no | — |
| 69 | C2×C4 | #99 | 1 | 1 | yes | characteristic |
| 70 | C2×C4 | #102 | 1 | 1 | yes | characteristic |
| 71 | C8 | — | 4 | 1 | no | — |
| 72 | C8 | — | 4 | 1 | no | — |
| 73 | C8 | — | 8 | 1 | no | — |
| 74 | C8 | — | 8 | 2 | no | — |
| 75 | C22 | — | 2 | 1 | no | — |
| 76 | C22 | — | 4 | 1 | no | — |
| 77 | C22 | — | 8 | 1 | no | — |
| 78 | C22 | — | 16 | 1 | no | — |
| 79 | C22 | #327 | 1 | 1 | yes | characteristic |
| 80 | C4 | — | 2 | 1 | no | — |
| 81 | C4 | — | 4 | 1 | no | — |
| 82 | C4 | — | 4 | 1 | no | — |
| 83 | C4 | — | 8 | 1 | no | — |
| 84 | C4 | AΣL(1,𝔽16) | 1 | 1 | yes | characteristic |
| 85 | C4 | #355 | 1 | 1 | yes | characteristic |
| 86 | C2 | — | 2 | 1 | no | — |
| 87 | C2 | — | 4 | 1 | no | — |
| 88 | C2 | — | 16 | 1 | no | — |
| 89 | C2 | #1345 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | #1345 |
| commutator | C2×M16 | C2×C4 |
| Frattini, cosocle | #423 | C22 |
| prime radical | #575 | C4 |
| LCS | G ▷ C2×M16 ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C2×C4 ◁ C22×C4 ◁ #423 ◁ G | |
| LECS | G ▷ #423 ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. #1327 | C2 | semidirect |
| 3. #1307 | C2 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #2050 | 2 |
| #1327 | 2 |
| #1307 | 2 |