Finite Group DatabasebetaFinite Group DatabasebetaOrder 256.
119 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | #2020 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | #1391 | C2 | 1 | 1 | yes | maximal, characteristic |
| 3 | #1321 | C2 | 1 | 1 | yes | maximal, characteristic |
| 4 | C2×#137 | — | 2 | 1 | no | — |
| 5 | C22×Q16 | C4 | 1 | 1 | yes | characteristic, complemented |
| 6 | C2×#101 | — | 2 | 1 | no | — |
| 7 | #410 | — | 2 | 1 | no | — |
| 8 | #408 | C22 | 1 | 1 | yes | characteristic |
| 9 | #349 | — | 2 | 1 | no | — |
| 10 | #341 | C4 | 1 | 1 | yes | characteristic, complemented |
| 11 | C2×#41 | D4 | 1 | 1 | yes | characteristic |
| 12 | C22×Q8 | — | 2 | 1 | no | — |
| 13 | #137 | — | 4 | 2 | no | — |
| 14 | #137 | — | 4 | 2 | no | — |
| 15 | C2×Q16 | — | 4 | 1 | no | — |
| 16 | C2×Q16 | — | 4 | 1 | no | — |
| 17 | C2×Q16 | — | 4 | 2 | no | — |
| 18 | C2×SD16 | — | 4 | 1 | no | — |
| 19 | C2×M16 | — | 2 | 1 | no | — |
| 20 | C2×M16 | D4 | 1 | 1 | yes | characteristic |
| 21 | C22×C8 | C2×C4 | 1 | 1 | yes | characteristic |
| 22 | #117 | — | 4 | 1 | no | — |
| 23 | M32 | — | 4 | 1 | no | — |
| 24 | #101 | — | 4 | 2 | no | — |
| 25 | #99 | — | 2 | 2 | no | — |
| 26 | #99 | — | 4 | 1 | no | — |
| 27 | C22⋊C8 | — | 4 | 1 | no | — |
| 28 | #41 | — | 4 | 1 | no | — |
| 29 | #41 | — | 4 | 1 | no | — |
| 30 | C2×Q8 | — | 2 | 2 | no | — |
| 31 | C2×Q8 | — | 4 | 1 | no | — |
| 32 | C2×Q8 | — | 4 | 1 | no | — |
| 33 | C2×Q8 | — | 4 | 1 | no | — |
| 34 | C2×Q8 | — | 4 | 1 | no | — |
| 35 | C2×Q8 | — | 4 | 1 | no | — |
| 36 | C2×Q8 | SD16 | 1 | 1 | yes | characteristic |
| 37 | C2×D4 | — | 2 | 1 | no | — |
| 38 | C2×D4 | D8 | 1 | 1 | yes | characteristic |
| 39 | C22×C4 | — | 2 | 1 | no | — |
| 40 | C22×C4 | — | 4 | 1 | no | — |
| 41 | C22×C4 | C22⋊C4 | 1 | 1 | yes | characteristic |
| 42 | Q16 | — | 4 | 2 | no | — |
| 43 | Q16 | — | 4 | 2 | no | — |
| 44 | Q16 | — | 4 | 4 | no | — |
| 45 | SD16 | — | 4 | 4 | no | — |
| 46 | M16 | — | 2 | 2 | no | — |
| 47 | M16 | — | 4 | 1 | no | — |
| 48 | M16 | — | 4 | 1 | no | — |
| 49 | C2×C8 | — | 2 | 1 | no | — |
| 50 | C2×C8 | — | 2 | 1 | no | — |
| 51 | C2×C8 | — | 4 | 1 | no | — |
| 52 | C2×C8 | — | 4 | 1 | no | — |
| 53 | C4⋊C4 | — | 8 | 1 | no | — |
| 54 | C22⋊C4 | — | 4 | 2 | no | — |
| 55 | C42 | — | 8 | 1 | no | — |
| 56 | C16 | — | 8 | 1 | no | — |
| 57 | C23 | — | 2 | 1 | no | — |
| 58 | C23 | #104 | 1 | 1 | yes | characteristic |
| 59 | Q8 | — | 4 | 1 | no | — |
| 60 | Q8 | — | 4 | 2 | no | — |
| 61 | Q8 | — | 4 | 2 | no | — |
| 62 | Q8 | — | 8 | 1 | no | — |
| 63 | Q8 | — | 8 | 1 | no | — |
| 64 | D4 | — | 4 | 1 | no | — |
| 65 | D4 | — | 8 | 1 | no | — |
| 66 | C2×C4 | — | 2 | 1 | no | — |
| 67 | C2×C4 | — | 2 | 1 | no | — |
| 68 | C2×C4 | — | 2 | 1 | no | — |
| 69 | C2×C4 | — | 4 | 1 | no | — |
| 70 | C2×C4 | — | 4 | 1 | no | — |
| 71 | C2×C4 | — | 4 | 2 | no | — |
| 72 | C2×C4 | — | 8 | 1 | no | — |
| 73 | C2×C4 | — | 8 | 1 | no | — |
| 74 | C2×C4 | — | 8 | 2 | no | — |
| 75 | C2×C4 | #99 | 1 | 1 | yes | characteristic |
| 76 | C2×C4 | #102 | 1 | 1 | yes | characteristic |
| 77 | C8 | — | 4 | 2 | no | — |
| 78 | C8 | — | 4 | 1 | no | — |
| 79 | C8 | — | 4 | 1 | no | — |
| 80 | C22 | — | 2 | 1 | no | — |
| 81 | C22 | — | 4 | 1 | no | — |
| 82 | C22 | — | 4 | 1 | no | — |
| 83 | C22 | — | 8 | 1 | no | — |
| 84 | C22 | #327 | 1 | 1 | yes | characteristic |
| 85 | C4 | — | 2 | 1 | no | — |
| 86 | C4 | — | 4 | 1 | no | — |
| 87 | C4 | — | 8 | 2 | no | — |
| 88 | C4 | — | 16 | 2 | no | — |
| 89 | C4 | AΣL(1,𝔽16) | 1 | 1 | yes | characteristic |
| 90 | C4 | #353 | 1 | 1 | yes | characteristic |
| 91 | C2 | — | 2 | 1 | no | — |
| 92 | C2 | — | 4 | 1 | no | — |
| 93 | C2 | — | 8 | 1 | no | — |
| 94 | C2 | #1343 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | #1343 |
| commutator | C22×C8 | C2×C4 |
| Frattini, cosocle | #408 | C22 |
| prime radical | C2×#41 | D4 |
| LCS | G ▷ C22×C8 ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C2×C4 ◁ C22×C4 ◁ #408 ◁ G | |
| LECS | G ▷ #408 ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 5. C22×Q16 | C4 | semidirect |
| 10. #341 | C4 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| #2020 | 2 |
| #1391 | 2 |
| #1321 | 2 |