Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| nilpotency class | 5 |
| isoclinism | isoclinic class of #1412 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C5×C8 · Schur multiplier (H2) = C4 |
| direct product | C5×#7358 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C5 | #354 |
| commutator | C42 | C2×C5×C8 |
| Frattini, cosocle | #384 | C22×C5 |
| prime radical | C23×C5 | #99 |
| LCS | G ▷ C42 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C5 ◁ C23×C5 ◁ C22×C4×C5 ◁ C5×#384 ◁ G | |
180 conjugacy classes of subgroups; only the 50 normal subgroups are shown.
This group has 180 conjugacy classes of subgroups — too many to draw. Only its 50 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 29 |
| transitive degree | μt(G) = 320 |
A minimal faithful permutation representation — 2 generators on 29 points:
(1,2,3,4,5)(6,7,8,10,9,11,12,13)(14,15)(16,23,25,29)(17,21,27,20)(18,22)(19,24,28,26);(14,16,18,24)(15,19)(17,26,27,25)(20,23)(21,28)(22,29)140 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 346);