Finite Group Databasebeta

C7×#942 #10621339

order672
automorphism?
homologyAbelianization (H1) = C23×C7 · Schur multiplier (H2) = C22

Aliases

direct productC7×#942

Splittings

FittingC2×C3×C7×Q8 ⋊ C2
HallC3×C7 ⋊ #137
SylowC3 ⋊ C7×#137

Subgroups

subgroupG/H
centerC2×C7C2×#67
commutator, cosocleC3×C4C23×C7
FrattiniC4C22×D3×C7
FittingC2×C3×C7×Q8C2
socleC2×C3×C7C2×D4
prime radicalC7×#235C2
hypercenterC2×C7×Q8D3
hypocenterC3C7×#137
LCSG ▷ C3×C4 ▷ C2×C3 ▷ C3
UCSC1 ◁ C2×C7 ◁ C2×C4×C7 ◁ C2×C7×Q8

120 conjugacy classes of subgroups; only the 58 normal subgroups are shown.

normal subgroups only

This group has 120 conjugacy classes of subgroups — too many to draw. Only its 58 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)(11,14,16,23)(12,18,19,26)(13,20,15,22)(17,25,24,21);(11,13,16,15)(12,17,19,24)(14,22,23,20)(18,21,26,25);(9,10)(11,12)(13,17)(14,21)(15,24)(16,19)(18,20)(22,26)(23,25)

Conjugacy classes & character table

147 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#13054722, #13054723, #13054764, …
maximal normal subgroup of#13054722, #13054723, #13054764, …
maximal quotient ofC7×#4971, C7×#4964, C7×#4966, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(672, 921);