Finite Group Databasebeta

C5×#1779⋊C3 #14510683

order1920
isoclinismisoclinic class of #120⋊C3
automorphism?
homologyAbelianization (H1) = C3×C5×C8 · Schur multiplier (H2) = C22

Aliases

direct productC5×#1779⋊C3
unambiguous semidirect product#1779⋊(C3×C5)
unambiguous semidirect product(C5×#1779)⋊C3

Splittings

Fitting, HallC5×#1779 ⋊ C3
derivedC24 ⋊ C3×C5×C8
Sylow#1779 ⋊ C3×C5

Subgroups

subgroupG/H
center, hypercenterC4×C5#120⋊C3
commutator, hypocenterC24C3×C5×C8
FrattiniC22×C4C2×C5×A4
FittingC5×#1779C3
socleC23×C5C4×A4
prime radicalC2×C5×C22⋊A4C4
cosocleC24×C4C2×C3×C5
LCSG ▷ C24
UCSC1 ◁ C4×C5

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

normal subgroups only

This group has 344 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) = 21
transitive degreeμt(G) = 120

A minimal faithful permutation representation — 2 generators on 21 points:

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

Conjugacy classes & character table

200 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1920, 236381);