Finite Group DatabasebetaFinite Group Databasebeta| order | 21780 |
| automorphism | ? |
| homology | Abelianization (H1) = C22 · Schur multiplier (H2) = C2×C3 |
| unambiguous semidirect product | ((C11⋊D11)⋊C3)⋊D15 |
| Fitting, socle | C3×C5×C112 ⋊ C2×D3 |
| derived, Hall | C3×C5×C112⋊C3 ⋊ C22 |
| Hall | C3×C112⋊C3 ⋊ C2×D5 |
| Hall | C5×C112 ⋊ C2×C3⋊D3 |
| Sylow | C112 ⋊ C2×C3⋊D15 |
| Sylow | C5 ⋊ ((C11⋊D11)⋊C3)⋊D3 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C1 | G |
| commutator, cosocle, hypocenter | C3×C5×C112⋊C3 | C22 |
| Fitting, socle | C3×C5×C112 | C2×D3 |
| LCS | G ▷ C3×C5×C112⋊C3 | |
| UCS | C1 | |
168 conjugacy classes of subgroups.
Polycyclic presentation:
2^2,3^2,5,11^2|c^a=c^2,d^a=d^2,e^a=e^4,f^a=f^3g^10,g^a=f^8g^8,f^b=f^10,g^b=g^10,f^c=f^2g^10,g^c=f^7g^8213 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(21780, 553);