Finite Group DatabasebetaFinite Group Databasebeta| order | 9820 |
| automorphism | Aut(G) order 9623600 |
| homology | Abelianization (H1) = C22 · Schur multiplier (H2) = C2 |
| dihedral | D4910 |
| direct product | C2×D2455 |
| unambiguous semidirect product | (C2×C5)⋊D491 |
| unambiguous semidirect product | (C2×C491)⋊D5 |
| Fitting, socle | C2×C5×C491 ⋊ C2 |
| derived, Hall | C5×C491 ⋊ C22 |
| Sylow | C491 ⋊ C2×D5 |
| Sylow | C5 ⋊ C2×D491 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2 | D2455 |
| commutator, cosocle, hypocenter | C5×C491 | C22 |
| Frattini | C1 | G |
| Fitting, socle | C2×C5×C491 | C2 |
| LCS | G ▷ C5×C491 | |
| UCS | C1 ◁ C2 | |
20 conjugacy classes of subgroups.
2458 conjugacy classes. The character table is too large to display.
| maximal subgroup of | D3×D2455, C2×C3×D2455, C2×D7365, … |
| maximal normal subgroup of | C2×C3×D2455, D9820 |
| maximal quotient of | D3×D2455, C2×C3×D2455, C2×D7365, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(9820, 13);