Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 5 |
| isoclinism | isoclinic class of #1406 |
| automorphism | Aut(G) = #72285761 (order 4096) · Inn(G) = #353 · Out(G) = D42 |
| homology | Abelianization (H1) = C2×C8 · Schur multiplier (H2) = C2×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #353 |
| commutator | C42 | C2×C8 |
| Frattini, cosocle | #382 | C22 |
| prime radical | C23 | #99 |
| LCS | G ▷ C42 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23 ◁ C22×C4 ◁ #382 ◁ G | |
| LECS | G ▷ #382 ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
102 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 2 generators on 40 points:
(1,2,3,5,4,6,7,8)(9,10)(11,19,21,34)(12,23,24,39)(13,26,28,17)(14,18)(15,20,29,36)(16,25)(22,32,27,35)(30,37,31,38)(33,40);(9,11,14,22)(10,15,18,31)(12,20,24,38)(13,27,28,21)(16,32,33,19)(17,29,26,30)(23,35,39,34)(25,36,40,37)Polycyclic presentation:
2^8|a^2=d,b^2=h,c^2=g,d^2=f,e^2=h,b^a=bc,c^a=ce,e^a=eg,g^a=gh,c^b=cg,d^b=degh,e^b=eh,d^c=dgh,e^d=eh28 conjugacy classes — view the full character table.
| maximal subgroup of | #94533, #94637, #94649, … |
| maximal normal subgroup of | #94533, #94637, #94649, … |
| maximal quotient of | #93690, #93710, #93896, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 341);