Finite Group DatabasebetaFinite Group Databasebeta| order | 1520 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D8 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C5×C19 · Schur multiplier (H2) = C1 |
| direct product | C5×Q16×C19 |
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C2×C5×C19 | D4 |
| commutator, Frattini, cosocle | C4 | C22×C5×C19 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C5×C19 ◁ C4×C5×C19 ◁ G | |
36 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 1520 |
A minimal faithful permutation representation — 2 generators on 40 points:
(1,2,3,4,5)(6,7,8,9,10,11,12,13)(14,21,20,19,18,17,16,15)(22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40);(6,14,10,18)(7,15,11,19)(8,16,12,20)(9,17,13,21)665 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1520, 87);