Finite Group DatabasebetaFinite Group Databasebeta| order | 1980 |
| isoclinism | isoclinic class of D55 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C9 · Schur multiplier (H2) = C2 |
| direct product | C2×C9×D55 |
| unambiguous semidirect product | (C2×C5)⋊(C9×D11) |
| unambiguous semidirect product | (C2×C11)⋊(C9×D5) |
| Fitting | C2×C5×C9×C11 ⋊ C2 |
| derived, Hall | C5×C11 ⋊ C22×C9 |
| Hall | C5×C9×C11 ⋊ C22 |
| Hall | C9×C11 ⋊ C2×D5 |
| Hall | C5×C9 ⋊ C2×D11 |
| Sylow | C11 ⋊ C2×C9×D5 |
| Sylow | C5 ⋊ C2×C9×D11 |
60 conjugacy classes of subgroups.
| transitive degree | μt(G) = 990 |
522 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1980, 33);