Finite Group Databasebeta

C7×#6763 #13132623

order1680
isoclinismisoclinic class of #6758
automorphism?
homologyAbelianization (H1) = C2×C4×C7 · Schur multiplier (H2) = C22

Aliases

direct productC7×#6763

Splittings

FittingC22×C3×C5×C7 ⋊ C4
HallC3×C5×C7 ⋊ C22⋊C4
HallC5×C7 ⋊ #217
HallC3×C7 ⋊ C22⋊AGL(1,𝔽5)
HallC3×C5 ⋊ C7×C22⋊C4
SylowC5 ⋊ C7×#217
SylowC3 ⋊ C7×C22⋊AGL(1,𝔽5)

Subgroups

subgroupG/H
centerC2×C7C2×ΓL(1,𝔽16)
commutatorC2×C3×C5C2×C4×C7
FrattiniC2C2×C7×ΓL(1,𝔽16)
FittingC22×C3×C5×C7C4
socleC2×C3×C5×C7C2×C4
prime radicalC22×C3×C7×D5C2
cosocleC2×C3×D5C22×C7
hypercenterC22×C7ΓL(1,𝔽16)
hypocenterC3×C5C7×C22⋊C4
LCSG ▷ C2×C3×C5 ▷ C3×C5
UCSC1 ◁ C2×C7 ◁ C22×C7

136 conjugacy classes of subgroups; only the 50 normal subgroups are shown.

normal subgroups only

This group has 136 conjugacy classes of subgroups — too many to draw. Only its 50 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) = 19
transitive degreeμt(G) = 420

A minimal faithful permutation representation — 2 generators on 19 points:

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

Conjugacy classes & character table

210 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1680, 643);