Finite Group Databasebeta

C5×#66681 #13132671

order1680
automorphism?
homologyAbelianization (H1) = C23×C5 · Schur multiplier (H2) = C23

Aliases

direct productC5×#66681

Splittings

FittingC3×C4×C5×C7 ⋊ C22
HallC3×C5×C7 ⋊ C2×D4
HallC5×C7 ⋊ D3×D4
HallC3×C7 ⋊ C2×C5×D4
HallC3×C5 ⋊ D4×D7
SylowC7 ⋊ C5×D3×D4
SylowC3 ⋊ C5×D4×D7

Subgroups

subgroupG/H
centerC2×C5C2×D3×D7
commutator, cosocleC2×C3×C7C23×C5
FrattiniC2C2×C5×D3×D7
FittingC3×C4×C5×C7C22
socleC2×C3×C5×C7C23
hypercenterC4×C5D3×D7
hypocenterC3×C7C2×C5×D4
LCSG ▷ C2×C3×C7 ▷ C3×C7
UCSC1 ◁ C2×C5 ◁ C4×C5

216 conjugacy classes of subgroups; only the 68 normal subgroups are shown.

normal subgroups only

This group has 216 conjugacy classes of subgroups — too many to draw. Only its 68 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 — 3 generators on 19 points:

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

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, 691);