Finite Group Databasebeta

C5×#85461 #14511199

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

Aliases

direct productC5×#85461

Splittings

FittingC22×C5×SD16 ⋊ D3

Subgroups

subgroupG/H
centerC2×C5D4×S4
commutator, cosocleC4×A4C23×C5
FrattiniC4C22×C5×S4
FittingC22×C5×SD16D3
socleC23×C5D3×D4
prime radicalC5×#5914C2
hypercenterC5×SD16S4
hypocenterA4C5×#137
LCSG ▷ C4×A4 ▷ C2×A4 ▷ A4
UCSC1 ◁ C2×C5 ◁ C4×C5 ◁ C5×SD16

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

normal subgroups only

This group has 528 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) = 25
transitive degreeμt(G) = 240

A minimal faithful permutation representation — 3 generators on 25 points:

(1,2,3,4,5)(6,7,9)(11,16)(12,18)(13,21)(15,22)(19,20)(23,25);(10,12,14,20)(11,15,16,23)(13,18,21,19)(17,25,24,22);(7,8)(10,11)(12,15)(13,17)(14,16)(18,25)(19,22)(20,23)(21,24)

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, 236897);