Finite Group Databasebeta

C7×#4084 #11765184

order1120
automorphism?
homologyAbelianization (H1) = C23×C7 · Schur multiplier (H2) = C23

Aliases

direct productC7×#4084

Splittings

FittingC2×C5×C7×D4 ⋊ C2
HallC5×C7 ⋊ #121
SylowC5 ⋊ C7×#121

Subgroups

subgroupG/H
centerC22×C7C22×D5
commutator, cosocleC22×C5C23×C7
FrattiniC22C22×C7×D5
FittingC2×C5×C7×D4C2
socleC22×C5×C7C23
hypercenterC2×C7×D4D5
hypocenterC5C7×#121
LCSG ▷ C22×C5 ▷ C5
UCSC1 ◁ C22×C7 ◁ C2×C7×D4

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

normal subgroups only

This group has 188 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) = 20
transitive degreeμt(G) = 560

A minimal faithful permutation representation — 3 generators on 20 points:

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

Conjugacy classes & character table

238 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1120, 790);