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 | |
651 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 5 generators on 40 points:
(2,5)(3,7)(9,10,13,16)(11,17,19,14)(12,15,20,22)(18,23,24,21)(25,26,31,34)(27,32,28,29)(30,38,39,33)(35,37,36,40);(2,5)(6,8)(12,20)(15,22)(18,24)(21,23)(25,27,31,28)(26,29,34,32)(30,36,39,35)(33,40,38,37);(1,2,4,5)(3,6,7,8)(9,11,13,19)(10,14,16,17)(12,18,20,24)(15,21,22,23)(25,28,31,27)(26,32,34,29)(30,36,39,35)(33,40,38,37);(1,3)(2,6)(4,7)(5,8)(9,10)(11,17)(12,15)(13,16)(14,19)(18,23)(20,22)(21,24)(25,29,31,32)(26,28,34,27)(30,37,39,40)(33,36,38,35);(9,12,13,20)(10,15,16,22)(11,18,19,24)(14,21,17,23)(25,30,31,39)(26,33,34,38)(27,35,28,36)(29,37,32,40)Polycyclic presentation:
2^8|a^2=gh,b^2=f,c^2=g,d^2=f,e^2=gh,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×#58903, #8105257, #8105283, … |
| maximal normal subgroup of | C2×#58903, #8105257, #8105283, … |
| maximal quotient of | #585589, #585861, #586208, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 51891);