Finite Group DatabasebetaFinite Group Databasebeta| order | 19780 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C5 · Schur multiplier (H2) = C2 |
| direct product | C2×C5×D989 |
| unambiguous semidirect product | (C2×C23)⋊(C5×D43) |
| unambiguous semidirect product | (C2×C43)⋊(C5×D23) |
| Fitting, socle | C2×C5×C23×C43 ⋊ C2 |
| derived, Hall | C23×C43 ⋊ C22×C5 |
| Hall | C5×C23×C43 ⋊ C22 |
| Hall | C5×C43 ⋊ C2×D23 |
| Hall | C5×C23 ⋊ C2×D43 |
| Sylow | C43 ⋊ C2×C5×D23 |
| Sylow | C23 ⋊ C2×C5×D43 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2×C5 | D989 |
| commutator, cosocle, hypocenter | C23×C43 | C22×C5 |
| Frattini | C1 | G |
| Fitting, socle | C2×C5×C23×C43 | C2 |
| LCS | G ▷ C23×C43 | |
| UCS | C1 ◁ C2×C5 | |
40 conjugacy classes of subgroups.
| transitive degree | μt(G) = 9890 |
4960 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(19780, 25);