Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D8 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C4×C5×C8 · Schur multiplier (H2) = C23×C4 |
| direct product | C5×#7872 |
| subgroup | G/H | |
|---|---|---|
| center | C2×C42×C5 | D4 |
| commutator | C4 | C2×C4×C5×C8 |
| Frattini, cosocle | C2×C42 | C23×C5 |
| socle | C23×C5 | C2×C4⋊C4 |
| prime radical | C24×C5 | C4⋊C4 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C42×C5 ◁ C22×C42×C5 ◁ G | |
718 conjugacy classes of subgroups.
| minimal degree | μ(G) = 33 |
| transitive degree | μt(G) = 640 |
A minimal faithful permutation representation — 3 generators on 33 points:
(1,2,3,4,5)(6,7)(8,9)(10,11,12,14,13,15,16,17)(18,19)(20,28)(21,25)(22,26)(23,27)(24,29)(30,33)(31,32);(7,9)(18,20,22,30,23,31,21,29)(19,24,25,32,27,33,26,28);(18,21,23,22)(19,25,27,26)(20,29,31,30)(24,32,33,28)560 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 860);