Finite Group Databasebeta

C7×#6817 #13132883

order1680
isoclinismisoclinic class of Dic30
automorphism?
homologyAbelianization (H1) = C23×C7 · Schur multiplier (H2) = C22

Aliases

direct productC7×#6817

Splittings

FittingC2×C3×C4×C5×C7 ⋊ C2
HallC3×C5×C7 ⋊ #41
HallC5×C7 ⋊ #235
HallC3×C7 ⋊ #709
HallC3×C5 ⋊ C7×#41
SylowC5 ⋊ C7×#235
SylowC3 ⋊ C7×#709

Subgroups

subgroupG/H
centerC4×C7C2×D15
commutator, cosocleC2×C3×C5C23×C7
FrattiniC2C22×C7×D15
FittingC2×C3×C4×C5×C7C2
socleC2×C3×C5×C7C23
hypercenterC2×C4×C7D15
hypocenterC3×C5C7×#41
LCSG ▷ C2×C3×C5 ▷ C3×C5
UCSC1 ◁ C4×C7 ◁ C2×C4×C7

160 conjugacy classes of subgroups; only the 70 normal subgroups are shown.

normal subgroups only

This group has 160 conjugacy classes of subgroups — too many to draw. Only its 70 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) = 23
transitive degreeμt(G) = 840

A minimal faithful permutation representation — 3 generators on 23 points:

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

Conjugacy classes & character table

462 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1680, 903);