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×#19927 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C5 | D42 |
| commutator, Frattini, cosocle | C42 | C24×C5 |
| prime radical | C2×C5×D8 | D4 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ C42×C5 ◁ G | |
606 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)(6,7,10,13)(8,14,15,21)(9,18,19,12)(11,16,20,17)(22,23,26,29)(24,30,32,37)(25,33,35,28)(27,34,36,31);(6,8)(7,11)(9,16)(10,15)(12,21)(13,20)(14,18)(17,19);(8,15)(11,20)(14,21)(16,17)(22,24,26,32)(23,27,29,36)(25,34,35,31)(28,37,33,30);(8,16)(9,19)(11,21)(12,18)(14,20)(15,17)215 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 12915);