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 | C2×#121 | C22 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
711 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 40 points:
(1,2,4,5)(3,7,8,6)(9,10,14,18)(11,15,19,24)(12,16,22,21)(13,17,23,20)(25,26,30,33)(27,31,28,35)(29,32,37,40)(34,38,36,39);(2,5)(3,8)(11,19)(13,23)(15,24)(17,20)(25,27,30,28)(26,31,33,35)(29,36,37,34)(32,39,40,38);(2,5)(6,7)(9,11)(10,15)(12,17)(13,21)(14,19)(16,23)(18,24)(20,22)(25,28,30,27)(26,31,33,35)(29,36,37,34)(32,38,40,39);(1,2)(3,6)(4,5)(7,8)(9,12)(10,16)(11,20)(13,15)(14,22)(17,19)(18,21)(23,24)(25,26)(27,31)(28,35)(29,32)(30,33)(34,38)(36,39)(37,40);(1,3,4,8)(2,6,5,7)(9,13)(10,17)(11,21)(12,15)(14,23)(16,19)(18,20)(22,24)(25,29,30,37)(26,32,33,40)(27,34,28,36)(31,38,35,39)Polycyclic presentation:
2^8|a^2=gh,b^2=fg,c^2=fg,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×#54577, #8103886, #8103904, … |
| maximal normal subgroup of | C2×#54577, #8103886, #8103904, … |
| maximal quotient of | #585356, #586946, #587066, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 47565);