Finite Group Databasebeta

C7×#821 #10620619

order672
isoclinismisoclinic class of #204
automorphism?
homologyAbelianization (H1) = C2×C4×C7 · Schur multiplier (H2) = C22

Aliases

direct productC7×#821

Splittings

FittingC2×C3×C7×C8 ⋊ C2
HallC3×C7 ⋊ #102
SylowC3 ⋊ C7×#102

Subgroups

subgroupG/H
centerC22×C7D12
commutatorC3×C4C2×C4×C7
FrattiniC2×C4C2×D3×C7
FittingC2×C3×C7×C8C2
socleC22×C3×C7D4
prime radicalC2×C7×D12C2
cosocleC2×C3×C4C22×C7
hypercenterC2×C7×C8D3
hypocenterC3C7×#102
LCSG ▷ C3×C4 ▷ C2×C3 ▷ C3
UCSC1 ◁ C22×C7 ◁ C2×C4×C7 ◁ C2×C7×C8

100 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 336

A minimal faithful permutation representation — 2 generators on 22 points:

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

Conjugacy classes & character table

210 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#13052977, #13052997, #13053094, …
maximal normal subgroup of#13052977, #13052997, #13053094, …
maximal quotient ofC7×#4459, C7×#4470, C7×#4485, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(672, 201);