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 | #392 | C22 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
703 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 40 points:
(1,2,6,7)(3,5,4,8)(9,10,13,16)(11,17,18,14)(12,15,20,22)(19,23,24,21)(27,31)(28,35)(34,39)(36,40);(2,7)(3,4)(11,18)(14,17)(19,24)(21,23)(25,26,30,33)(27,28,31,35)(29,37,38,32)(34,40,39,36);(1,3,6,4)(2,8,7,5)(9,11,13,18)(10,14,16,17)(12,19,20,24)(15,21,22,23)(25,27)(26,28)(29,34)(30,31)(32,36)(33,35)(37,40)(38,39);(1,4,6,3)(2,5,7,8)(9,10)(11,14)(12,15)(13,16)(17,18)(19,21)(20,22)(23,24)(25,28)(26,31)(27,33)(29,36)(30,35)(32,39)(34,37)(38,40);(1,5)(2,3)(4,7)(6,8)(9,12,13,20)(10,15,16,22)(11,19,18,24)(14,21,17,23)(25,29,30,38)(26,32,33,37)(27,34,31,39)(28,36,35,40)Polycyclic presentation:
2^8|a^2=h,b^2=gh,c^2=h,d^2=f,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×#57768, #8101461, #8101963, … |
| maximal normal subgroup of | C2×#57768, #8101461, #8101963, … |
| maximal quotient of | #586863, #586900, #587183, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 50756);