Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #465 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C24×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C24 | C2×D4 |
| commutator | C2×C4 | C2×C42 |
| Frattini, cosocle | C23×C4 | C23 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C2 ▷ C1 | |
491 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 3 generators on 20 points:
(1,2)(3,4)(6,8)(9,10,11,12)(14,19)(15,20)(16,17);(2,4)(13,14,17,15,18,20,16,19);(5,6,7,8)(13,15,16,14,18,19,17,20)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^2=eh,d^2=h,e^2=h,g^2=h,b^a=bd,c^a=ce,d^a=dh,e^a=eh,g^a=gh88 conjugacy classes — view the full character table.
| maximal subgroup of | #93388, #93583, #93591, … |
| maximal normal subgroup of | #93388, #93583, #93591, … |
| maximal quotient of | #108842, #108845, #108852, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 3850);