| order | 1280 |
| nilpotency class | 5 |
| isoclinism | isoclinic class of #13681 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C5 · Schur multiplier (H2) = C23 |
| direct product | C5×#13683 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C2×C5 | #2196 |
| commutator, Frattini, cosocle | C4⋊Q8 | C23×C5 |
| prime radical | C5×#3291 | C2 |
| LCS | G ▷ C4⋊Q8 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C5 ◁ C22×C5 ◁ C2×C4×C5 ◁ C5×C4⋊Q8 ◁ G | |
392 conjugacy classes of subgroups; only the 58 normal subgroups are shown.
This group has 392 conjugacy classes of subgroups — too many to draw. Only its 58 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 21 |
| transitive degree | μt(G) = 80 |
A minimal faithful permutation representation — 3 generators on 21 points:
(1,2,3,4,5)(6,7,12,11)(8,16,19,21)(9,20,15,10)(13,18,14,17);(6,8)(7,13)(9,18)(10,21)(11,14)(12,19)(15,17)(16,20);(6,8)(7,14)(9,16)(10,17)(11,13)(12,19)(15,21)(18,20)125 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 6671);