Finite Group Databasebeta

C7×#126⋊C3 #10621167

order672
isoclinismisoclinic class of #126⋊C3
automorphism?
homologyAbelianization (H1) = C2×C3×C7 · Schur multiplier (H2) = C2

Aliases

direct productC7×#126⋊C3
unambiguous semidirect product#126⋊(C3×C7)

Splittings

Fitting, HallC7×#126 ⋊ C3
derivedC42 ⋊ C2×C3×C7
Sylow#126 ⋊ C3×C7

Subgroups

subgroupG/H
center, hypercenterC7#126⋊C3
commutator, cosocle, hypocenterC42C2×C3×C7
FrattiniC22C2×C7×A4
FittingC7×#126C3
socleC22×C7C2×A4
LCSG ▷ C42
UCSC1 ◁ C7

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 23
transitive degreeμt(G) = 112

A minimal faithful permutation representation — 2 generators on 23 points:

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

Conjugacy classes & character table

70 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD7×#126⋊C3, (#126⋊C3)⋊D7, C2×C7×#126⋊C3, …
maximal normal subgroup ofD7×#126⋊C3, (#126⋊C3)⋊D7, C2×C7×#126⋊C3, …
maximal quotient ofC7×#383⋊C3, C7×#396⋊C3, C7×#401⋊C3, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(672, 749);