Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #53390 |
| automorphism | Aut(G) = C215 (order 32768) · Inn(G) = C25 · Out(G) = C210 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C27 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| prime radical | C24 | C24 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
669 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 40 points:
(2,4)(3,5)(25,26,29,32)(27,33,35,30)(28,31,36,38)(34,39,40,37);(1,2)(3,7)(4,6)(5,8)(10,14)(12,20)(15,17)(18,24)(25,26,29,32)(27,30,35,33)(28,31,36,38)(34,37,40,39);(1,3,6,5)(2,7,4,8)(9,10,13,14)(11,17,19,15)(12,16,20,21)(18,23,24,22)(25,26)(27,30)(28,31)(29,32)(33,35)(34,37)(36,38)(39,40);(1,4,6,2)(3,7,5,8)(9,11,13,19)(10,15,14,17)(12,18,20,24)(16,22,21,23)(25,27,29,35)(26,30,32,33)(28,34,36,40)(31,37,38,39);(1,5,6,3)(2,7,4,8)(9,12)(10,16)(11,18)(13,20)(14,21)(15,22)(17,23)(19,24)(25,28,29,36)(26,31,32,38)(27,34,35,40)(30,37,33,39)Polycyclic presentation:
2^8|a^2=fg,b^2=fg,c^2=gh,d^2=fh,e^2=g,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=ch,d^b=df,e^b=egh,d^c=dgh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#58678, #8104893, #8104904, … |
| maximal normal subgroup of | C2×#58678, #8104893, #8104904, … |
| maximal quotient of | #585652, #586438, #587010, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 51666);