Finite Group Databasebeta

C19×#7421 #18013380

order4864
nilpotency class5
isoclinismisoclinic class of #7418
automorphism?
homologyAbelianization (H1) = C2×C4×C19 · Schur multiplier (H2) = C2

Aliases

direct productC19×#7421

Subgroups

subgroupG/H
center, socleC22×C19#357
commutatorC2×C16C2×C4×C19
Frattini, cosocleC22×C16C22×C19
prime radicalC23×C19SD32
LCSG ▷ C2×C16 ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C19 ◁ C22×C4×C19 ◁ C22×C8×C19 ◁ C22×C16×C19 ◁ G

140 conjugacy classes of subgroups; only the 50 normal subgroups are shown.

normal subgroups only

This group has 140 conjugacy classes of subgroups — too many to draw. Only its 50 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) = 91
transitive degreeμt(G) = 2432

A minimal faithful permutation representation — 2 generators on 91 points:

(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19)(20,21)(22,26,27,24)(23,25)(28,29,32,38,35,42,58,41)(30,43,45,77,48,80,56,79)(31,49,52,86,55,72,91,87)(33,59,57,39,34,61,51,40)(36,63,64,44,68,81,67,83)(37,69,71,54,74,89,73,53)(46,84,60,78,47,85,62,70)(50,75,88,65,82,76,90,66);(20,22)(21,24)(23,27)(25,26)(28,30,35,48)(29,36,42,68)(31,50,55,82)(32,56,58,45)(33,60,34,62)(37,70,74,78)(38,67,41,64)(39,75,40,76)(43,49,80,72)(44,53,83,54)(46,51,47,57)(52,90,91,88)(59,65,61,66)(63,69,81,89)(71,85,73,84)(77,87,79,86)

Conjugacy classes & character table

931 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(4864, 409);