| order | 1920 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #1339 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C3×C4×C5 · Schur multiplier (H2) = C2 |
| direct product | C3×C5×#1340 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C2×C3×C5 | #327 |
| commutator | C2×C8 | C2×C3×C4×C5 |
| Frattini, cosocle | C2×M16 | C22×C3×C5 |
| prime radical | C23×C3×C5 | D8 |
| LCS | G ▷ C2×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C3×C5 ◁ C2×C3×C4×C5 ◁ C2×C3×C5×M16 ◁ G | |
208 conjugacy classes of subgroups; only the 72 normal subgroups are shown.
This group has 208 conjugacy classes of subgroups — too many to draw. Only its 72 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) = 480 |
A minimal faithful permutation representation — 2 generators on 40 points:
(1,2,3)(4,5,6,7,8)(9,10)(11,20,22,37)(12,25,27,36)(13,18)(14,30)(15,19)(16,21)(17,28,34,29)(23,33,24,40)(26,35)(31,38)(32,39);(9,11,15,22)(10,16,19,32)(12,26,27,38)(13,24,14,23)(17,33,34,40)(18,35,30,31)(20,36,37,25)(21,28,39,29)300 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1920, 72);