Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #19621 |
| automorphism | ? |
| homology | Abelianization (H1) = C24×C5 · Schur multiplier (H2) = C23×C4 |
| direct product | C5×#19625 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C5 | C2×#127 |
| commutator, Frattini, cosocle | C42 | C24×C5 |
| prime radical | C5×#3205 | C2 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ C2×C42×C5 ◁ G | |
836 conjugacy classes of subgroups.
| minimal degree | μ(G) = 29 |
| transitive degree | μt(G) = 320 |
A minimal faithful permutation representation — 4 generators on 29 points:
(1,2,3,4,5)(7,10)(8,12)(11,13)(14,15)(16,22)(17,19)(18,26)(20,24)(21,25)(23,28)(27,29);(6,7,8,10,9,11,12,13)(15,19)(20,27)(21,26)(22,28);(14,16,18,24,17,23,25,29)(15,20,21,22,19,27,26,28);(7,11)(10,13)260 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 12613);