Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #18682 |
| automorphism | ? |
| homology | Abelianization (H1) = C24×C5 · Schur multiplier (H2) = C25 |
| direct product | C5×#18685 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C5 | C2×#120 |
| commutator, Frattini, cosocle | C42 | C24×C5 |
| prime radical | C5×#3544 | C2 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ C2×C42×C5 ◁ G | |
930 conjugacy classes of subgroups.
| minimal degree | μ(G) = 45 |
| transitive degree | μt(G) = 640 |
A minimal faithful permutation representation — 4 generators on 45 points:
(1,2,3,4,5)(7,10)(8,12)(11,13)(14,15,19,23)(16,24,27,37)(17,21,28,35)(18,30,32,22)(20,31,34,26)(25,38,39,45)(29,42,41,36)(33,43,44,40);(8,12)(10,13)(14,16,19,27)(15,20,23,34)(17,25,28,39)(18,31,32,26)(21,33,35,44)(22,37,30,24)(29,43,41,40)(36,45,42,38);(6,7)(8,13)(9,11)(10,12)(14,17)(15,21)(16,25)(18,29)(19,28)(20,33)(22,36)(23,35)(24,38)(26,40)(27,39)(30,42)(31,43)(32,41)(34,44)(37,45);(17,28)(21,35)(25,39)(29,41)(33,44)(36,42)(38,45)(40,43)200 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 11673);