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, prime radical, cosocle | C23 | C25 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
653 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 5 generators on 40 points:
(1,2,5,7)(3,8,4,6)(25,26,31,34)(27,32,28,29)(30,38,39,33)(35,37,36,40);(1,3)(2,6)(4,5)(7,8)(10,14)(12,20)(15,17)(18,24)(25,27,31,28)(26,29,34,32)(30,36,39,35)(33,40,38,37);(3,4)(6,8)(9,10,13,14)(11,17,19,15)(12,16,20,21)(18,23,24,22)(25,28,31,27)(26,32,34,29)(30,36,39,35)(33,40,38,37);(1,4,5,3)(2,6,7,8)(9,11,13,19)(10,15,14,17)(12,18,20,24)(16,22,21,23)(25,29,31,32)(26,28,34,27)(30,37,39,40)(33,36,38,35);(1,2)(3,8)(4,6)(5,7)(9,12)(10,16)(11,18)(13,20)(14,21)(15,22)(17,23)(19,24)(25,30,31,39)(26,33,34,38)(27,35,28,36)(29,37,32,40)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^2=fh,d^2=gh,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×#58700, #8104880, #8104900, … |
| maximal normal subgroup of | C2×#58700, #8104880, #8104900, … |
| maximal quotient of | #586052, #586244, #587054, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 51688);