Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #47826 |
| 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 | C24 | C24 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
674 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 40 points:
(2,5)(6,8)(9,10,14,15)(11,12,16,19)(13,21,22,17)(18,24,23,20)(25,26,29,32)(27,30,35,33)(28,31,37,36)(34,38,40,39);(10,15)(12,19)(17,21)(20,24)(25,26,29,32)(27,33,35,30)(28,36,37,31)(34,38,40,39);(1,2)(3,6)(4,5)(7,8)(9,11,14,16)(10,12,15,19)(13,18,22,23)(17,20,21,24)(25,26)(27,33)(28,31)(29,32)(30,35)(34,39)(36,37)(38,40);(9,12)(10,16)(11,15)(13,20)(14,19)(17,23)(18,21)(22,24)(25,27,29,35)(26,30,32,33)(28,34,37,40)(31,38,36,39);(1,3,4,7)(2,6,5,8)(9,13,14,22)(10,17,15,21)(11,18,16,23)(12,20,19,24)(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=f,d^2=h,e^2=fg,b^a=bf,c^a=cg,e^a=ef,c^b=ch,d^b=dfh,e^b=eh,d^c=dh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#51251, #7707259, #7707271, … |
| maximal normal subgroup of | C2×#51251, #7707259, #7707271, … |
| maximal quotient of | #560840, #561017, #561947, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 44239);