Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #10144 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C5 · Schur multiplier (H2) = C23 |
| direct product | C5×#10157 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C5 | #392 |
| commutator, Frattini, cosocle | C2×C42 | C23×C5 |
| prime radical | C23×C5 | #121 |
| LCS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ C2×C42×C5 ◁ G | |
476 conjugacy classes of subgroups.
| minimal degree | μ(G) = 37 |
| transitive degree | μt(G) = 640 |
A minimal faithful permutation representation — 3 generators on 37 points:
(1,2,3,4,5)(6,7,11,15)(8,16,19,20)(9,12,10,14)(13,17,21,18)(24,30)(25,32)(27,35)(28,33)(31,34)(36,37);(7,12)(8,17)(9,10)(14,15)(16,20)(18,19)(22,23,26,29)(24,27,31,36)(25,33,32,28)(30,37,34,35);(6,8,11,19)(7,13,15,21)(9,17,10,18)(12,16,14,20)(22,24)(23,27)(25,34)(26,31)(28,37)(29,36)(30,32)(33,35)200 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 3145);