Finite Group DatabasebetaFinite Group Databasebeta| order | 21660 |
| automorphism | ? |
| homology | Abelianization (H1) = C3×C4 · Schur multiplier (H2) = C1 |
| unambiguous semidirect product | #20297996⋊C3 |
| Fitting, socle, derived, Hall | C5×C192 ⋊ C3×C4 |
| Hall | #20297996 ⋊ C3 |
| Hall | C5×#11762245 ⋊ C4 |
| Hall | #11762245 ⋊ Dic5 |
| Sylow | C192 ⋊ C3×Dic5 |
| Sylow | C5 ⋊ #13089659⋊C3 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C1 | G |
| commutator, Fitting, socle, hypocenter | C5×C192 | C3×C4 |
| prime radical | C5×#14524206 | C2 |
| cosocle | C5×C19⋊D19 | C2×C3 |
| LCS | G ▷ C5×C192 | |
| UCS | C1 | |
104 conjugacy classes of subgroups.
| transitive degree | μt(G) = 190 |
Polycyclic presentation:
2,3,2,5,19^2|a^2=c,d^a=d^4,e^a=e^5f^15,f^a=e^16f^14,e^b=e^11,f^b=f^11,e^c=e^18,f^c=f^18174 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(21660, 125);