Finite Group DatabasebetaFinite Group Databasebeta| order | 1920 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #353 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C3×C4×C5 · Schur multiplier (H2) = C24 |
| direct product | C2×C3×C5×#354 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C3×C5 | #99 |
| commutator | C2×C4 | C22×C3×C4×C5 |
| Frattini, cosocle | C2×D4 | C23×C3×C5 |
| prime radical | C22×C3×C5×D4 | C22 |
| LCS | G ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C3×C5 ◁ C23×C3×C5 ◁ C22×C3×C5×D4 ◁ G | |
568 conjugacy classes of subgroups.
| minimal degree | μ(G) = 26 |
| transitive degree | μt(G) = 480 |
A minimal faithful permutation representation — 3 generators on 26 points:
(1,2)(19,20,21)(22,23,24,25,26);(3,4)(5,11,13,18)(6,14,16,9)(7,10)(8,12)(15,17);(3,5,7,13)(4,8,10,17)(6,15,16,12)(9,18,14,11)390 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1920, 857);