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 | C22×D4 | C23 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
696 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 40 points:
(1,2)(3,5)(4,6)(7,8)(9,10,13,14)(11,17,19,15)(12,20,21,16)(18,23,22,24)(25,26)(27,30)(28,36)(29,32)(31,37)(33,35)(34,39)(38,40);(4,8)(6,7)(10,14)(12,21)(15,17)(18,22)(25,26,29,32)(27,33,35,30)(28,36,37,31)(34,38,40,39);(2,3)(6,7)(9,11)(10,15)(12,22)(13,19)(14,17)(16,24)(18,21)(20,23)(25,27,29,35)(26,30,32,33)(28,34,37,40)(31,38,36,39);(1,3,5,2)(4,7,8,6)(9,12,13,21)(10,16,14,20)(11,18,19,22)(15,23,17,24)(25,26)(27,33)(28,31)(29,32)(30,35)(34,39)(36,37)(38,40);(1,4,5,8)(2,6,3,7)(9,10)(11,15)(12,16)(13,14)(17,19)(18,23)(20,21)(22,24)(25,28,29,37)(26,31,32,36)(27,34,35,40)(30,38,33,39)Polycyclic presentation:
2^8|a^2=fh,b^2=h,c^2=h,d^2=g,e^2=fg,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×#57858, #8101488, #8101957, … |
| maximal normal subgroup of | C2×#57858, #8101488, #8101957, … |
| maximal quotient of | #586318, #586725, #586736, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 50846);