Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #3484 |
| automorphism | ? |
| homology | Abelianization (H1) = C24×C4×C5 · Schur multiplier (H2) = C28 |
| direct product | C5×#34330 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23×C5 | C25 |
| commutator | C22 | C24×C4×C5 |
| Frattini, cosocle | C23 | C25×C5 |
| prime radical | C2×C5×#550 | C2 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23×C5 ◁ G | |
2772 conjugacy classes of subgroups.
| minimal degree | μ(G) = 25 |
| transitive degree | μt(G) = 640 |
A minimal faithful permutation representation — 5 generators on 25 points:
(1,2,3,4,5)(6,7,9,8)(10,11)(12,16)(13,15)(14,17)(19,21)(23,24);(10,11,13,15)(12,14,17,16)(18,19,22,21)(20,24,25,23);(18,19,22,21)(20,23,25,24);(10,11)(12,14)(13,15)(16,17)(18,20,22,25)(19,23,21,24);(6,8,9,7)(10,12,13,17)(11,14,15,16)(18,21,22,19)(20,24,25,23)440 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 27318);