Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #120 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C22×C42 · Schur multiplier (H2) = C24×C4 |
| direct product | C2×#1771 |
| subgroup | G/H | |
|---|---|---|
| center | C23×C4 | C23 |
| commutator | C22 | C22×C42 |
| Frattini, cosocle | C22×C4 | C24 |
| socle, prime radical | C24 | C22×C4 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
655 conjugacy classes of subgroups.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 18 points:
(1,2);(3,4,5,6)(11,12,14,13,15,16,18,17);(4,6)(7,8,9,10);(11,13,14,16,15,17,18,12)112 conjugacy classes — view the full character table.
| maximal subgroup of | #96677, #96679, #98825, … |
| maximal normal subgroup of | #96677, #96679, #98825, … |
| maximal quotient of | C2×#8262, C2×#8264, C2×#8265, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13421);