Finite Group DatabasebetaFinite Group Databasebeta| order | 320 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of D4 |
| automorphism | ? |
| homology | Abelianization (H1) = C25×C5 · Schur multiplier (H2) = C29 |
| direct product | C22×C5×#41 |
| subgroup | G/H | |
|---|---|---|
| center | C22×C4×C5 | C22 |
| commutator, Frattini, cosocle | C2 | C25×C5 |
| socle | C23×C5 | C23 |
| LCS | G ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C4×C5 ◁ G | |
890 conjugacy classes of subgroups.
| minimal degree | μ(G) = 17 |
| transitive degree | μt(G) = 160 |
A minimal faithful permutation representation — 5 generators on 17 points:
(1,2)(5,6,7,8,9);(3,4);(11,14)(15,17);(10,11)(12,15)(13,14)(16,17);(1,2)(3,4)(10,12,13,16)(11,15,14,17)200 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(320, 1631);