Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #19883 |
| automorphism | ? |
| homology | Abelianization (H1) = C24×C5 · Schur multiplier (H2) = C24 |
| direct product | C5×#19932 |
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C22×C5 | D42 |
| commutator, Frattini, cosocle | C42 | C24×C5 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ C42×C5 ◁ G | |
554 conjugacy classes of subgroups.
| minimal degree | μ(G) = 37 |
| transitive degree | μt(G) = 1280 |
A minimal faithful permutation representation — 4 generators on 37 points:
(1,2,3,4,5)(6,7,11,9)(8,14,15,21)(10,18,20,13)(12,19,17,16)(22,23,26,29)(24,30,32,37)(25,33,35,28)(27,34,36,31);(6,8,11,15)(7,12,9,17)(10,19,20,16)(13,21,18,14);(8,15)(12,17)(14,21)(16,19)(22,24,26,32)(23,27,29,36)(25,34,35,31)(28,37,33,30);(6,9,11,7)(8,14,15,21)(10,13,20,18)(12,19,17,16)215 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 12920);