Finite Group Databasebeta

C5×C4⋊#857 #14510706

order1920
automorphism?
homologyAbelianization (H1) = C22×C5 · Schur multiplier (H2) = C22

Aliases

direct productC5×C4⋊#857
unambiguous semidirect productC4⋊(C5×#857)

Splittings

FittingC43×C5 ⋊ D3

Subgroups

subgroupG/H
centerC2×C5C2×#857
commutator, cosocleC2×C42⋊C3C22×C5
FrattiniC23C2×C5×S4
FittingC43×C5D3
socleC23×C5C2×S4
hypercenterC4×C5#857
hypocenterC42⋊C3C5×D4
LCSG ▷ C2×C42⋊C3 ▷ C42⋊C3
UCSC1 ◁ C2×C5 ◁ C4×C5

328 conjugacy classes of subgroups; only the 30 normal subgroups are shown.

normal subgroups only

This group has 328 conjugacy classes of subgroups — too many to draw. Only its 30 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) = 60

A minimal faithful permutation representation — 2 generators on 17 points:

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

Conjugacy classes & character table

140 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1920, 236404);