Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of H(3,ℤ/4) |
| automorphism | ? |
| homology | Abelianization (H1) = C43×C5 · Schur multiplier (H2) = C22×C42 |
| direct product | C4×C5×#338 |
| subgroup | G/H | |
|---|---|---|
| center | C42×C5 | C42 |
| commutator | C4 | C43×C5 |
| Frattini, cosocle | C23×C4 | C23×C5 |
| socle | C22×C5 | C2×#95 |
| prime radical | C24×C5 | C2×Q8 |
| LCS | G ▷ C4 ▷ C1 | |
| UCS | C1 ◁ C42×C5 ◁ G | |
858 conjugacy classes of subgroups; only the 454 normal subgroups are shown.
This group has 858 conjugacy classes of subgroups — too many to draw. Only its 454 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 25 |
| transitive degree | μt(G) = 320 |
A minimal faithful permutation representation — 3 generators on 25 points:
(1,2,3,4)(21,22,23,24,25);(5,6,8,12,10,13,9,18)(7,14,16,11,17,19,15,20);(5,7,9,16,10,17,8,15)(6,11,12,14,13,20,18,19)440 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 3686);