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 | C2×#127 | C4 |
| LCS | G ▷ C42 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23 ◁ C22×C4 ◁ #382 ◁ G | |
| LECS | G ▷ #382 ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
128 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 2 generators on 24 points:
(1,2,3,5,4,6,7,8)(9,10,11,16)(12,15,18,23)(13,17,19,24)(14,20,22,21);(10,14)(11,18)(12,21)(15,17)(19,20)(22,23)Polycyclic presentation:
2^8|a^2=d,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 | #94532, #94636, #94648, … |
| maximal normal subgroup of | #94532, #94636, #94648, … |
| maximal quotient of | #93689, #93709, #93895, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 340);