Finite Group Databasebeta

C7×#4057 #11765155

order1120
automorphism?
homologyAbelianization (H1) = C23×C7 · Schur multiplier (H2) = C22

Aliases

direct productC7×#4057

Splittings

FittingC5×C7×D8 ⋊ C2
HallC5×C7 ⋊ AGL(1,ℤ/8)
SylowC5 ⋊ C7×AGL(1,ℤ/8)

Subgroups

subgroupG/H
centerC2×C7D4×D5
commutator, cosocleC4×C5C23×C7
FrattiniC4C22×C7×D5
FittingC5×C7×D8C2
socleC2×C5×C7C2×D4
hypercenterC7×D8D5
hypocenterC5C7×AGL(1,ℤ/8)
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2×C7 ◁ C4×C7 ◁ C7×D8

136 conjugacy classes of subgroups; only the 54 normal subgroups are shown.

normal subgroups only

This group has 136 conjugacy classes of subgroups — too many to draw. Only its 54 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) = 280

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

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

Conjugacy classes & character table

175 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofΓL(1,𝔽8)×#4057, C7×D5×AGL(1,ℤ/8), D7×#4057, …
maximal normal subgroup ofΓL(1,𝔽8)×#4057, C7×D5×AGL(1,ℤ/8), D7×#4057, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1120, 761);