Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23848 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C22×D4 | C23 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C4⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
348 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 24 points:
(1,2,5,7)(3,8,4,6)(9,10,13,14)(11,16,12,15)(18,21)(22,24);(1,3,5,4)(2,6,7,8)(10,14)(15,16)(18,22)(20,23)(21,24);(1,4,5,3)(2,6,7,8)(9,11,13,12)(10,15,14,16)(17,18)(19,21)(20,24)(22,23);(2,7)(6,8)(9,12,13,11)(10,16,14,15)Polycyclic presentation:
2^8|a^2=e,b^2=efh,c^2=e,d^2=fh,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,g^c=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#27363, #6450285, #6450303, … |
| maximal normal subgroup of | C2×#27363, #6450285, #6450303, … |
| maximal quotient of | #361396, #363608, #366040, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 20351);