Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #52308 |
| 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 | #2828 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
735 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)(3,6)(4,8)(5,7)(12,20)(16,21)(18,24)(22,23)(25,26)(27,30)(28,31)(29,34)(32,37)(33,35)(36,39)(38,40);(1,3,5,8)(2,6,7,4)(10,14)(15,17)(16,21)(22,23)(26,27)(28,35)(32,34)(36,40);(1,3)(2,4)(5,8)(6,7)(9,10,13,14)(11,17,19,15)(12,16,20,21)(18,23,24,22)(25,27,30,26)(28,31,35,33)(29,34,37,32)(36,38,40,39);(1,4)(2,3)(5,6)(7,8)(9,11,13,19)(10,15,14,17)(12,18,20,24)(16,22,21,23)(25,28,30,35)(26,31,27,33)(29,36,37,40)(32,38,34,39);(9,12)(10,16)(11,18)(13,20)(14,21)(15,22)(17,23)(19,24)(25,29,30,37)(26,32,27,34)(28,36,35,40)(31,38,33,39)Polycyclic presentation:
2^8|b^2=fg,c^2=fgh,d^2=fgh,e^2=f,b^a=bf,c^a=cg,d^a=dfg,e^a=efgh,c^b=ch,d^b=df,d^c=dfgh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#52945, #8092734, #8092759, … |
| maximal normal subgroup of | C2×#52945, #8092734, #8092759, … |
| maximal quotient of | #582191, #582433, #582434, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 45933);