| order | 1920 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1655 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C3×C5 · Schur multiplier (H2) = C22 |
| direct product | C3×C5×#1663 |
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C22×C3×C5 | #120 |
| commutator, Frattini, cosocle | C42 | C23×C3×C5 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C3×C5 ◁ C3×C42×C5 ◁ G | |
344 conjugacy classes of subgroups; only the 120 normal subgroups are shown.
This group has 344 conjugacy classes of subgroups — too many to draw. Only its 120 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 1920 |
A minimal faithful permutation representation — 3 generators on 40 points:
(1,2,3)(4,5,6,7,8)(9,10,15,19)(11,20,22,23)(12,21,16,24)(13,18,14,17)(25,26,30,28)(27,33,36,40)(29,37,39,32)(31,38,34,35);(9,11)(10,16)(12,19)(13,24)(14,21)(15,22)(17,23)(18,20)(25,27,30,36)(26,31,28,34)(29,38,39,35)(32,40,37,33);(9,12,15,16)(10,11,19,22)(13,23,14,20)(17,21,18,24)(25,28,30,26)(27,34,36,31)(29,32,39,37)(33,38,40,35)300 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1920, 395);