Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #3415 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C4×C5 · Schur multiplier (H2) = C25 |
| direct product | C5×#33457 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C5 | C22×D8 |
| commutator | C8 | C23×C4×C5 |
| Frattini, cosocle | C2×C8 | C24×C5 |
| prime radical | C22×C5×D8 | C22 |
| LCS | G ▷ C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ C5×#117 ◁ C5×#405 ◁ G | |
682 conjugacy classes of subgroups.
| minimal degree | μ(G) = 41 |
| transitive degree | μt(G) = 320 |
A minimal faithful permutation representation — 4 generators on 41 points:
(1,2,3,4,5)(6,7,9,8)(10,11)(12,20)(13,24)(14,29)(15,17)(16,21)(18,27)(19,26)(22,40)(23,37)(25,35)(28,36)(30,34)(31,39)(32,41)(33,38);(10,12,15,23)(11,16,17,31)(13,25,28,41)(14,30,26,22)(18,34,33,40)(19,35,29,32)(20,36,37,24)(21,38,39,27);(6,8,9,7)(10,11)(12,16)(13,18)(14,19)(15,17)(20,21)(22,32)(23,31)(24,27)(25,34)(26,29)(28,33)(30,35)(36,38)(37,39)(40,41);(11,17)(16,31)(18,33)(19,29)(20,37)(24,36)(32,35)(34,40)320 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 26445);