| order | 1980 |
| isoclinism | isoclinic class of AGL(1,𝔽5) |
| automorphism | ? |
| homology | Abelianization (H1) = C4×C9×C11 · Schur multiplier (H2) = C1 |
| direct product | C9×C11×AGL(1,𝔽5) |
| Fitting, Hall | C5×C9×C11 ⋊ C4 |
| derived, Sylow | C5 ⋊ C4×C9×C11 |
| Hall | C5×C11 ⋊ C4×C9 |
| Hall | C5×C9 ⋊ C4×C11 |
36 conjugacy classes of subgroups.
| minimal degree | μ(G) = 25 |
| transitive degree | μt(G) = 495 |
A minimal faithful permutation representation — 2 generators on 25 points:
(1,2,3,4,5,6,7,8,9)(10,11,12,13,14,15,16,17,18,19,20)(22,23,24,25);(21,22,23,25,24)495 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1980, 19);