Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #19755 |
| automorphism | ? |
| homology | Abelianization (H1) = C24×C5 · Schur multiplier (H2) = C24 |
| direct product | C5×#19832 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C5 | D42 |
| commutator, Frattini, cosocle | C42 | C24×C5 |
| prime radical | C5×#555 | C22 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ C42×C5 ◁ G | |
580 conjugacy classes of subgroups.
| minimal degree | μ(G) = 37 |
| transitive degree | μt(G) = 640 |
A minimal faithful permutation representation — 4 generators on 37 points:
(1,2,3,4,5)(6,7,12,10)(8,15,17,21)(9,14,11,18)(13,20,19,16)(22,23)(24,28)(25,32)(26,34)(27,30)(29,31)(33,36)(35,37);(6,8)(7,13)(9,16)(10,19)(11,20)(12,17)(14,21)(15,18)(22,24,27,26)(23,28,30,34)(25,31,33,35)(29,36,37,32);(6,9,12,11)(7,14,10,18)(8,16,17,20)(13,21,19,15)(22,25,27,33)(23,29,30,37)(24,31,26,35)(28,36,34,32);(6,10,12,7)(8,15,17,21)(9,18,11,14)(13,20,19,16)200 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 12820);