Finite Group DatabasebetaFinite Group DatabasebetaOrder 256.
655 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C2×#442 | C2 | 1 | 4 | yes | maximal, complemented |
| 2 | C4×#127 | C2 | 1 | 2 | yes | maximal, complemented |
| 3 | #2094 | C2 | 1 | 4 | yes | maximal, complemented |
| 4 | #2011 | C2 | 1 | 4 | yes | maximal, complemented |
| 5 | #1745 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 6 | C22×D8 | C22 | 1 | 4 | yes | — |
| 7 | C2×#127 | C22 | 1 | 2 | yes | — |
| 8 | C2×C4×D4 | — | 2 | 4 | no | — |
| 9 | C2×C4×D4 | C22 | 1 | 4 | yes | — |
| 10 | #442 | — | 2 | 16 | no | — |
| 11 | C2×#106 | C22 | 1 | 4 | yes | — |
| 12 | C2×#102 | C22 | 1 | 8 | yes | — |
| 13 | C2×#97 | C22 | 1 | 2 | yes | — |
| 14 | #390 | — | 2 | 4 | no | — |
| 15 | #390 | C22 | 1 | 4 | yes | — |
| 16 | #384 | C22 | 1 | 2 | yes | — |
| 17 | C43 | C22 | 1 | 1 | yes | characteristic |
| 18 | #336 | C22 | 1 | 4 | yes | — |
| 19 | C22×D4 | — | 2 | 4 | no | — |
| 20 | C22×D4 | C23 | 1 | 4 | yes | — |
| 21 | C23×C4 | — | 2 | 4 | no | — |
| 22 | C2×D8 | — | 2 | 16 | no | — |
| 23 | C2×D8 | — | 2 | 8 | no | — |
| 24 | C22×C8 | C23 | 1 | 4 | yes | — |
| 25 | #127 | — | 2 | 8 | no | — |
| 26 | C4×D4 | — | 2 | 16 | no | — |
| 27 | C4×D4 | — | 4 | 16 | no | — |
| 28 | C2×C4⋊C4 | — | 2 | 4 | no | — |
| 29 | C2×C4⋊C4 | C23 | 1 | 4 | yes | — |
| 30 | C2×C22⋊C4 | — | 2 | 8 | no | — |
| 31 | C2×C22⋊C4 | — | 2 | 4 | no | — |
| 32 | C2×C42 | D4 | 1 | 4 | yes | — |
| 33 | C2×C42 | C23 | 1 | 2 | yes | — |
| 34 | C2×C42 | C23 | 1 | 1 | yes | characteristic |
| 35 | #106 | — | 2 | 8 | no | — |
| 36 | #102 | — | 2 | 16 | no | — |
| 37 | #97 | D4 | 1 | 8 | yes | complemented |
| 38 | C24 | — | 2 | 4 | no | — |
| 39 | C2×D4 | — | 2 | 16 | no | — |
| 40 | C2×D4 | — | 2 | 8 | no | — |
| 41 | C2×D4 | — | 2 | 8 | no | — |
| 42 | C2×D4 | — | 2 | 4 | no | — |
| 43 | C2×D4 | — | 4 | 8 | no | — |
| 44 | C2×D4 | — | 4 | 8 | no | — |
| 45 | C2×D4 | #41 | 1 | 8 | yes | — |
| 46 | C22×C4 | — | 2 | 4 | no | — |
| 47 | C22×C4 | — | 4 | 16 | no | — |
| 48 | C22×C4 | — | 4 | 8 | no | — |
| 49 | C22×C4 | C2×D4 | 1 | 2 | yes | — |
| 50 | C22×C4 | C2×D4 | 1 | 4 | yes | — |
| 51 | C22×C4 | C24 | 1 | 1 | yes | characteristic |
| 52 | D8 | — | 2 | 32 | no | — |
| 53 | C2×C8 | — | 2 | 8 | no | — |
| 54 | C2×C8 | C2×D4 | 1 | 8 | yes | — |
| 55 | C4⋊C4 | — | 2 | 8 | no | — |
| 56 | C4⋊C4 | — | 4 | 8 | no | — |
| 57 | C22⋊C4 | — | 4 | 8 | no | — |
| 58 | C22⋊C4 | — | 4 | 16 | no | — |
| 59 | C42 | — | 2 | 8 | no | — |
| 60 | C42 | — | 2 | 4 | no | — |
| 61 | C42 | C2×D4 | 1 | 4 | yes | — |
| 62 | C23 | — | 2 | 8 | no | — |
| 63 | C23 | — | 4 | 4 | no | — |
| 64 | C23 | — | 4 | 4 | no | — |
| 65 | C23 | — | 4 | 8 | no | — |
| 66 | C23 | — | 4 | 8 | no | — |
| 67 | C23 | C22×D4 | 1 | 1 | yes | characteristic |
| 68 | D4 | — | 2 | 16 | no | — |
| 69 | D4 | — | 4 | 32 | no | — |
| 70 | D4 | — | 4 | 8 | no | — |
| 71 | C2×C4 | — | 2 | 4 | no | — |
| 72 | C2×C4 | — | 2 | 4 | no | — |
| 73 | C2×C4 | — | 2 | 4 | no | — |
| 74 | C2×C4 | — | 4 | 4 | no | — |
| 75 | C2×C4 | — | 4 | 8 | no | — |
| 76 | C2×C4 | — | 8 | 16 | no | — |
| 77 | C2×C4 | #127 | 1 | 4 | yes | — |
| 78 | C2×C4 | AGL(1,ℤ/8) | 1 | 8 | yes | — |
| 79 | C2×C4 | C22×D4 | 1 | 2 | yes | — |
| 80 | C2×C4 | C2×#41 | 1 | 4 | yes | — |
| 81 | C8 | — | 2 | 8 | no | — |
| 82 | C22 | — | 4 | 16 | no | — |
| 83 | C22 | — | 4 | 8 | no | — |
| 84 | C22 | — | 8 | 8 | no | — |
| 85 | C22 | — | 8 | 4 | no | — |
| 86 | C22 | — | 8 | 4 | no | — |
| 87 | C22 | #525 | 1 | 2 | yes | — |
| 88 | C22 | C2×#127 | 1 | 1 | yes | characteristic |
| 89 | C22 | C2×AGL(1,ℤ/8) | 1 | 4 | yes | — |
| 90 | C4 | — | 2 | 8 | no | — |
| 91 | C4 | — | 2 | 4 | no | — |
| 92 | C4 | — | 8 | 4 | no | — |
| 93 | C4 | #525 | 1 | 4 | yes | — |
| 94 | C2 | — | 8 | 8 | no | — |
| 95 | C2 | #2397 | 1 | 1 | yes | characteristic |
| 96 | C2 | #3109 | 1 | 4 | yes | — |
| 97 | C2 | #3151 | 1 | 2 | yes | — |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C43 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×#442 | C2 | semidirect |
| 2. C4×#127 | C2 | semidirect |
| 3. #2094 | C2 | semidirect |
| 4. #2011 | C2 | semidirect |
| 5. #1745 | C2 | semidirect |
| 37. #97 | D4 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#442 | 2 |
| C4×#127 | 2 |
| #2094 | 2 |
| #2011 | 2 |
| #1745 | 2 |