Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #392 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C22×C8 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C23×C4 | C23 |
| commutator | C23 | C22×C8 |
| socle, prime radical | C24 | C22×C4 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C2 ▷ C1 | |
467 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)(6,7)(13,14,15,17,16,18,19,20);(5,6,8,7)(9,10)(11,12);(2,4)(5,7,8,6)(10,12)Polycyclic presentation:
2^8|a^2=g,b^2=d,c^2=d,g^2=h,b^a=bd,c^a=ce,c^b=cf88 conjugacy classes — view the full character table.
| maximal subgroup of | #93413, #93426, #93594, … |
| maximal normal subgroup of | #93413, #93426, #93594, … |
| maximal quotient of | #119995, #119996, #119997, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4190);