Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #360 |
| automorphism | Aut(G) order 2048 |
| homology | Abelianization (H1) = C22×C8 · Schur multiplier (H2) = C23 |
| direct product | C2×#1336 |
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | #102 |
| commutator | C8 | C22×C8 |
| Frattini, cosocle | C4×C8 | C23 |
| socle | C22 | D4⋊C8 |
| prime radical | C2×#135 | C4 |
| LCS | G ▷ C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C22×C8 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
199 conjugacy classes of subgroups; only the 79 normal subgroups are shown.
This group has 199 conjugacy classes of subgroups — too many to draw. Only its 79 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 3 generators on 18 points:
(1,2);(3,4,7,11,8,12,18,17,9,13,6,15,16,5,14,10);(3,5)(4,8)(6,10)(7,17)(9,12)(11,14)(13,16)(15,18)64 conjugacy classes — view the full character table.
| maximal subgroup of | C4×#1336, #128528, #128570, … |
| maximal normal subgroup of | C4×#1336, #128528, #128570, … |
| maximal quotient of | C2×#7070, C2×#7071, #122464, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4591);