Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #62817 |
| automorphism | ? |
| homology | Abelianization (H1) = C26×C5 · Schur multiplier (H2) = C213 |
| direct product | C5×#62832 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C5 | C26 |
| commutator, Frattini, cosocle | C22 | C26×C5 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ G | |
8650 conjugacy classes of subgroups.
| minimal degree | μ(G) = 21 |
| transitive degree | μt(G) = 160 |
A minimal faithful permutation representation — 6 generators on 21 points:
(1,2,3,4,5)(7,10)(11,13)(14,15)(16,17)(18,19)(20,21);(8,12)(11,13)(15,19)(17,20);(6,7)(8,11)(9,10)(12,13)(14,15,18,19)(16,20,21,17);(14,16)(15,20)(17,19)(18,21);(6,8,9,12)(7,11,10,13)(14,17,18,20)(15,16,19,21);(6,7)(8,11)(9,10)(12,13)(14,16)(15,20)(17,19)(18,21)380 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 55820);