Finite Group Databasebeta

C7×#4007 #11764660

order1120
automorphism?
homologyAbelianization (H1) = C2×C4×C7 · Schur multiplier (H2) = C22

Aliases

direct productC7×#4007

Splittings

FittingC5×C7×D4 ⋊ C4
HallC5×C7 ⋊ #102
SylowC5 ⋊ C7×#102

Subgroups

subgroupG/H
centerC2×C7C22⋊AGL(1,𝔽5)
commutatorC4×C5C2×C4×C7
FrattiniC4C2×C7×AGL(1,𝔽5)
FittingC5×C7×D4C4
socleC2×C5×C7C22⋊C4
prime radicalC7×D4×D5C2
cosocleC4×D5C22×C7
hypercenterC7×D4AGL(1,𝔽5)
hypocenterC5C7×#102
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2×C7 ◁ C4×C7 ◁ C7×D4

100 conjugacy classes of subgroups; only the 36 normal subgroups are shown.

normal subgroups only

This group has 100 conjugacy classes of subgroups — too many to draw. Only its 36 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 — 2 generators on 20 points:

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

Conjugacy classes & character table

133 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofΓL(1,𝔽8)×#4007, C7×D8×AGL(1,𝔽5), C7×#65731, …
maximal normal subgroup ofΓL(1,𝔽8)×#4007, C7×D8×AGL(1,𝔽5), C7×#65731, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1120, 266);