Finite Group Databasebeta

C5×#85457 #14511195

order1920
automorphism?
homologyAbelianization (H1) = C23×C5 · Schur multiplier (H2) = C23

Aliases

direct productC5×#85457

Splittings

FittingC22×C5×D8 ⋊ D3

Subgroups

subgroupG/H
centerC2×C5D4×S4
commutator, cosocleC4×A4C23×C5
FrattiniC4C22×C5×S4
FittingC22×C5×D8D3
socleC23×C5D3×D4
hypercenterC5×D8S4
hypocenterA4C5×AGL(1,ℤ/8)
LCSG ▷ C4×A4 ▷ C2×A4 ▷ A4
UCSC1 ◁ C2×C5 ◁ C4×C5 ◁ C5×D8

606 conjugacy classes of subgroups; only the 68 normal subgroups are shown.

normal subgroups only

This group has 606 conjugacy classes of subgroups — too many to draw. Only its 68 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 17
transitive degreeμt(G) = 120

A minimal faithful permutation representation — 3 generators on 17 points:

(1,2,3,4,5)(6,7,9)(10,11)(12,17)(13,14)(15,16);(11,15)(12,16)(14,17);(7,8)(11,14)(15,17)

Conjugacy classes & character table

145 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1920, 236893);