Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #99 |
| automorphism | ? |
| homology | Abelianization (H1) = C4×C5×C16 · Schur multiplier (H2) = C22 |
| direct product | C5×#7209 |
| subgroup | G/H | |
|---|---|---|
| center | C2×C5×C8 | C22⋊C4 |
| commutator | C22 | C4×C5×C16 |
| Frattini, cosocle | C2×C4×C8 | C22×C5 |
| socle | C22×C5 | #336 |
| prime radical | C23×C5 | C4×C8 |
| LCS | G ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C5×C8 ◁ C2×C4×C5×C8 ◁ G | |
222 conjugacy classes of subgroups.
| minimal degree | μ(G) = 29 |
| transitive degree | μt(G) = 640 |
A minimal faithful permutation representation — 2 generators on 29 points:
(1,2,3,4,5)(6,7,8,11,9,10,12,13)(14,15,17,22,19,16,21,25,20,24,18,23,28,27,29,26);(7,10)(8,12)(14,16,18,26,19,24,29,22,20,27,17,25,28,15,21,23)440 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 197);