Finite Group DatabasebetaFinite Group Databasebeta| order | 8420 |
| isoclinism | isoclinic class of D5 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C421 · Schur multiplier (H2) = C2 |
| direct product | C2×D5×C421 |
| unambiguous semidirect product | C5⋊(C22×C421) |
| unambiguous semidirect product | (C2×C5)⋊(C2×C421) |
| Fitting, socle | C2×C5×C421 ⋊ C2 |
| derived, Sylow | C5 ⋊ C22×C421 |
| Hall | C5×C421 ⋊ C22 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2×C421 | D5 |
| commutator, hypocenter | C5 | C22×C421 |
| Frattini | C1 | G |
| Fitting, socle | C2×C5×C421 | C2 |
| LCS | G ▷ C5 | |
| UCS | C1 ◁ C2×C421 | |
20 conjugacy classes of subgroups.
3368 conjugacy classes. The character table is too large to display.
| maximal subgroup of | C2×D5×C421⋊C3, D3×D5×C421, C2×C3×D5×C421, … |
| maximal normal subgroup of | C2×D5×C421⋊C3, C2×C3×D5×C421 |
| maximal quotient of | D3×D5×C421, C2×C3×D5×C421, C2×D15×C421 |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(8420, 19);