Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #32706 |
| 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 | C2×#121 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
365 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2)(3,5)(4,6)(7,8)(9,10,13,12)(11,15,16,14)(17,18,21,25)(19,27,29,23)(20,24,22,26)(28,32,30,31);(1,3)(2,5)(4,7)(6,8)(9,11,13,16)(10,14,12,15)(19,28)(20,22)(23,31)(24,26)(27,32)(29,30);(2,6)(5,8)(10,12)(14,15)(17,19)(18,23)(20,28)(21,29)(22,30)(24,31)(25,27)(26,32);(3,7)(5,8)(9,12,13,10)(11,15,16,14)(17,20,21,22)(18,24,25,26)(19,28,29,30)(23,31,27,32)Polycyclic presentation:
2^8|a^2=eh,b^2=e,d^2=eh,g^2=h,b^a=be,c^a=cf,c^b=cg,d^b=def,g^b=gh,d^c=de,g^c=gh40 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#32778, #6631168, #6631178, … |
| maximal normal subgroup of | C2×#32778, #6631168, #6631178, … |
| maximal quotient of | #391231, #391233, #391235, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 25766);