Finite Group Databasebeta

C7×#5431 #13057151

order1344
automorphism?
homologyAbelianization (H1) = C22×C7 · Schur multiplier (H2) = C2

Aliases

direct productC7×#5431

Splittings

FittingC7×2−1+4 ⋊ D3

Subgroups

subgroupG/H
center, socleC2×C7GL(2,ℤ/4)
commutator, cosocle#41⋊C3C22×C7
FrattiniC4C2×C7×S4
FittingC7×2−1+4D3
hypercenterC7×D4S4
hypocenterSL(2,𝔽3)C7×D4
LCSG ▷ #41⋊C3 ▷ SL(2,𝔽3)
UCSC1 ◁ C2×C7 ◁ C4×C7 ◁ C7×D4

144 conjugacy classes of subgroups; only the 26 normal subgroups are shown.

normal subgroups only

This group has 144 conjugacy classes of subgroups — too many to draw. Only its 26 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) = 39
transitive degreeμt(G) = 224

A minimal faithful permutation representation — 2 generators on 39 points:

(1,2,3,4,5,6,7)(8,11,23)(9,26,31,14,16,38)(10,34,36,19,20,37)(13,24,25)(15,32,39,18,28,33)(17,27)(21,35)(29,30);(8,9)(10,14)(11,17)(12,16)(13,18)(15,19)(20,27)(21,26)(22,32)(23,33)(24,30)(25,31)(28,35)(29,34)(36,39)(37,38)

Conjugacy classes & character table

119 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1344, 6440);