| order | 640 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #2812 |
| automorphism | ? |
| homology | Abelianization (H1) = C24×C5 · Schur multiplier (H2) = C24 |
| direct product | C5×#2822 |
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23×C5 | C24 |
| commutator, Frattini, cosocle | C23 | C24×C5 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23×C5 ◁ G | |
380 conjugacy classes of subgroups; only the 184 normal subgroups are shown.
This group has 380 conjugacy classes of subgroups — too many to draw. Only its 184 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 33 |
| transitive degree | μt(G) = 640 |
A minimal faithful permutation representation — 4 generators on 33 points:
(1,2,3,4,5)(11,12)(15,16)(18,19,23,25)(20,26,28,21)(22,24,32,33)(27,31,30,29);(7,9)(10,11,14,12)(13,15,17,16)(18,20,23,28)(19,21,25,26)(22,30,32,27)(24,31,33,29);(6,7)(8,9)(10,12,14,11)(13,15,17,16)(18,21)(19,20)(22,31)(23,26)(24,30)(25,28)(27,33)(29,32);(10,13,14,17)(11,15,12,16)(18,22,23,32)(19,24,25,33)(20,27,28,30)(21,29,26,31)130 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 18499);