Finite Group DatabasebetaFinite Group Databasebeta| order | 20940 |
| automorphism | ? |
| homology | Abelianization (H1) = C3×C4 · Schur multiplier (H2) = C1 |
| unambiguous semidirect product | Dic1745⋊C3 |
| derived, Hall | C5×C349 ⋊ C3×C4 |
| Hall | Dic1745 ⋊ C3 |
| Hall | C5×C349⋊C3 ⋊ C4 |
| Hall | C349⋊C3 ⋊ Dic5 |
| Sylow | C349 ⋊ C3×Dic5 |
| Sylow | C5 ⋊ Dic349⋊C3 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C2 | C5⋊(D349⋊C3) |
| commutator, hypocenter | C5×C349 | C3×C4 |
| Fitting, socle, cosocle | C2×C5×C349 | C2×C3 |
| prime radical | C2×C5×C349⋊C3 | C2 |
| LCS | G ▷ C5×C349 | |
| UCS | C1 ◁ C2 | |
24 conjugacy classes of subgroups.
| transitive degree | μt(G) = 6980 |
Polycyclic presentation:
2,3,5,349,2|a^2=e,c^a=c^4,d^a=d^348,d^b=d^226604 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(20940, 12);