Finite Group DatabasebetaFinite Group Databasebeta| order | 1440 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D8 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C4×C5×C9 · Schur multiplier (H2) = C2 |
| direct product | C5×C9×#106 |
| subgroup | G/H | |
|---|---|---|
| center | C22×C5×C9 | D4 |
| commutator | C4 | C2×C4×C5×C9 |
| Frattini, cosocle | C2×C3×C4 | C22×C3×C5 |
| socle, prime radical | C22×C3×C5 | C3×D4 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C5×C9 ◁ C2×C4×C5×C9 ◁ G | |
108 conjugacy classes of subgroups.
| minimal degree | μ(G) = 26 |
| transitive degree | μt(G) = 1440 |
A minimal faithful permutation representation — 2 generators on 26 points:
(1,2,3,4,5)(6,7,8,9,10,11,12,13,14)(15,16,17,18)(20,23)(21,25)(24,26);(19,20,21,23,22,24,25,26)630 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1440, 209);