Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of D4 |
| automorphism | ? |
| homology | Abelianization (H1) = C25×C4 · Schur multiplier (H2) = C214 |
| direct product | C23×#131 |
| subgroup | G/H | |
|---|---|---|
| center | C23×C8 | C22 |
| commutator | C2 | C25×C4 |
| Frattini, cosocle | C4 | C26 |
| socle | C24 | C22×C4 |
| prime radical | C23×#41 | C2 |
| LCS | G ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23×C8 ◁ G | |
| LECS | G ▷ C4 ▷ C2 ▷ C1 | |
5711 conjugacy classes of subgroups.
| minimal degree | μ(G) = 22 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 6 generators on 22 points:
(1,2);(3,4);(5,6);(7,8,10,13,11,14,17,20)(9,12,16,19,15,18,21,22);(7,9)(8,12)(10,16)(11,15)(13,19)(14,18)(17,21)(20,22);(9,15)(12,18)(16,21)(19,22)160 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 56061);