Finite Group DatabasebetaFinite Group Databasebeta| order | 1920 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #120 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C3×C4×C5 · Schur multiplier (H2) = C28 |
| direct product | C2×C3×C5×#386 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C24×C3×C5 | C23 |
| commutator | C22 | C23×C3×C4×C5 |
| Frattini, cosocle | C23 | C24×C3×C5 |
| prime radical | C23×C3×C5×D4 | C2 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C24×C3×C5 ◁ G | |
3152 conjugacy classes of subgroups.
| minimal degree | μ(G) = 22 |
| transitive degree | μt(G) = 960 |
A minimal faithful permutation representation — 4 generators on 22 points:
(1,2)(15,16,17)(18,19,20,21,22);(4,6)(7,8,9,10)(12,14);(7,8)(9,10)(11,12,13,14);(3,4)(5,6)(7,8)(9,10)840 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1920, 1019);