Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #7262 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C42 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #340 |
| commutator | C2×C8 | C42 |
| Frattini, cosocle | C2×C4×C8 | C22 |
| prime radical | C23 | #103 |
| LCS | G ▷ C2×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C2×C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
113 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 2 generators on 24 points:
(1,2)(3,5)(4,7)(6,8)(9,10,13,16,15,19,23,18)(11,14,20,24,17,12,21,22);(2,5)(3,8)(6,7)(9,11,14,16,13,21,24,10,15,17,12,18,23,20,22,19)Polycyclic presentation:
2^8|a^2=d,b^2=e,c^2=f,d^2=h,e^2=fg,f^2=h,b^a=bc,c^a=cf,e^a=efg,f^a=fh,c^b=cg,d^b=dh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#7280, #127720, #127739, … |
| maximal normal subgroup of | C2×#7280, #127720, #127739, … |
| maximal quotient of | #93076, #93077, #93080, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 268);