| order | 1920 |
| isoclinism | isoclinic class of #14515303 |
| automorphism | Aut(G) = #72240876 (order 7680) · Inn(G) = G · Out(G) = C22 |
| homology | Abelianization (H1) = C1 · Schur multiplier (H2) = C2 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C1 | G |
| commutator, hypocenter | G | C1 |
| Frattini, Fitting, cosocle | C25 | A5 |
| socle | C24 | SL(2,𝔽5) |
| LCS | G | |
| UCS | C1 | |
73 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 40 |
A minimal faithful permutation representation — 2 generators on 40 points:
(1,3)(5,6,7,8)(9,17,11,19)(10,20,12,18)(13,25,14,28)(15,27,16,26)(21,31,22,29)(23,32,24,30)(33,37,34,40)(35,39,36,38);(1,13,34)(2,14,35)(3,16,36)(4,15,33)(5,39,17)(6,38,19)(7,40,18)(8,37,20)(9,30,28)(10,31,25)(11,32,27)(12,29,26)(21,22,24)14 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1920, 241001);