Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #46350 |
| 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 | #2703 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
830 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 24 points:
(9,10)(11,15)(12,14)(13,16)(17,18,20,22)(19,21,23,24);(1,2,5,7)(3,4,8,6)(9,10,13,16)(11,14,12,15);(1,3,5,8)(2,6,7,4)(9,11,13,12)(10,14,16,15)(17,18)(19,21)(20,22)(23,24);(1,3)(2,4)(5,8)(6,7)(9,10)(11,14)(12,15)(13,16)(17,19,20,23)(18,21,22,24);(1,4)(2,3)(5,6)(7,8)(9,12,13,11)(10,15,16,14)Polycyclic presentation:
2^8|a^2=fg,b^2=fh,c^2=fh,d^2=fg,e^2=f,b^a=bf,c^a=cg,e^a=ef,c^b=ch,d^b=df,e^b=eh,d^c=dh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#47602, #7701541, #7701589, … |
| maximal normal subgroup of | C2×#47602, #7701541, #7701589, … |
| maximal quotient of | #576947, #577008, #577035, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 40590);