Finite Group Databasebeta

C5×#85512 #14511250

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

Aliases

direct productC5×#85512

Subgroups

subgroupG/H
centerC2×C5C2×GL(2,ℤ/4)
commutator, cosocleC4×A4C23×C5
FrattiniC4C22×C5×S4
FittingC22×C5×#41D3
socleC23×C5C2×#67
prime radicalC5×A4×#41C2
hypercenterC5×#41S4
hypocenterA4C5×#137
LCSG ▷ C4×A4 ▷ C2×A4 ▷ A4
UCSC1 ◁ C2×C5 ◁ C2×C4×C5 ◁ C5×#41

604 conjugacy classes of subgroups; only the 76 normal subgroups are shown.

normal subgroups only

This group has 604 conjugacy classes of subgroups — too many to draw. Only its 76 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)(12,19)(13,21)(15,22)(17,18)(23,24);(10,12)(11,15)(13,20)(14,19)(16,24)(17,22)(18,23)(21,25);(7,8)(10,11,14,18)(12,15,19,23)(13,16,21,17)(20,24,25,22)

Conjugacy classes & character table

160 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1920, 236948);