Finite Group Databasebeta

C7×#4742 #13055777

order1344
automorphism?
homologyAbelianization (H1) = C23×C7 · Schur multiplier (H2) = C23

Aliases

direct productC7×#4742

Splittings

FittingC3×C7×#99 ⋊ C2
HallC3×C7 ⋊ #458
SylowC3 ⋊ C7×#458

Subgroups

subgroupG/H
centerC2×C7#882
commutator, cosocleC23×C3C23×C7
FrattiniC23C22×D3×C7
FittingC3×C7×#99C2
socleC2×C3×C7#120
prime radicalC7×#1004C2
hypercenterC7×#99D3
hypocenterC3C7×#458
LCSG ▷ C23×C3 ▷ C2×C3 ▷ C3
UCSC1 ◁ C2×C7 ◁ C23×C7 ◁ C7×#99

320 conjugacy classes of subgroups; only the 78 normal subgroups are shown.

normal subgroups only

This group has 320 conjugacy classes of subgroups — too many to draw. Only its 78 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) = 26
transitive degreeμt(G) = 336

A minimal faithful permutation representation — 3 generators on 26 points:

(1,2,3,4,5,6,7)(8,9,10)(11,14,15,22)(12,17,18,25)(13,19)(16,23)(20,21)(24,26);(11,13)(12,16)(14,21)(15,20)(17,23)(18,24)(19,22)(25,26);(9,10)(11,12)(13,16)(14,17)(15,18)(19,26)(20,24)(21,23)(22,25)

Conjugacy classes & character table

189 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1344, 5066);