Finite Group DatabasebetaFinite Group Databasebeta| order | 1440 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of D16 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C5×C9 · Schur multiplier (H2) = C2 |
| direct product | C5×C9×D16 |
| subgroup | G/H | |
|---|---|---|
| center | C2×C5×C9 | D8 |
| commutator | C8 | C22×C5×C9 |
| Frattini, cosocle | C3×C8 | C22×C3×C5 |
| socle | C2×C3×C5 | C3×D8 |
| prime radical | C3×C5×D16 | C3 |
| LCS | G ▷ C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C5×C9 ◁ C4×C5×C9 ◁ C5×C8×C9 ◁ G | |
84 conjugacy classes of subgroups.
| minimal degree | μ(G) = 30 |
| transitive degree | μt(G) = 720 |
A minimal faithful permutation representation — 2 generators on 30 points:
(1,2,3,4,5)(6,7,8,9,10,11,12,13,14)(15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30);(16,30)(17,29)(18,28)(19,27)(20,26)(21,25)(22,24)495 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1440, 214);