Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #34980 |
| automorphism | ? |
| homology | Abelianization (H1) = C25×C5 · Schur multiplier (H2) = C28 |
| direct product | C5×#35342 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23×C5 | C25 |
| commutator, Frattini, cosocle | C23 | C25×C5 |
| prime radical | C5×#2615 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23×C5 ◁ G | |
2374 conjugacy classes of subgroups.
| minimal degree | μ(G) = 33 |
| transitive degree | μt(G) = 640 |
A minimal faithful permutation representation — 5 generators on 33 points:
(1,2,3,4,5)(7,9)(11,14)(15,17)(21,28)(25,30)(27,32)(31,33);(6,7)(8,9)(19,23)(20,26)(25,30)(27,32);(10,11)(12,15)(13,14)(16,17)(18,19,22,23)(20,24,26,29)(21,25,28,30)(27,31,32,33);(10,12,13,16)(11,15,14,17)(18,20)(19,24)(21,27)(22,26)(23,29)(25,31)(28,32)(30,33);(18,21,22,28)(19,25,23,30)(20,27,26,32)(24,31,29,33)320 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 28330);