Finite Group Databasebeta

C7×#4064 #11765162

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

Aliases

direct productC7×#4064

Splittings

FittingC5×C7×Q16 ⋊ C2
HallC5×C7 ⋊ #137
SylowC5 ⋊ C7×#137

Subgroups

subgroupG/H
centerC2×C7D4×D5
commutator, cosocleC4×C5C23×C7
FrattiniC4C22×C7×D5
FittingC5×C7×Q16C2
socleC2×C5×C7C2×D4
prime radicalC7×#713C2
hypercenterC7×Q16D5
hypocenterC5C7×#137
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2×C7 ◁ C4×C7 ◁ C7×Q16

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

normal subgroups only

This group has 120 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) = 28
transitive degreeμt(G) = 560

A minimal faithful permutation representation — 3 generators on 28 points:

(1,2,3,4,5,6,7)(8,9,11,12,10)(13,15,17,21)(14,18,20,27)(16,25,26,23)(19,28,24,22);(13,14,17,20)(15,22,21,28)(16,24,26,19)(18,25,27,23);(9,10)(11,12)(15,21)(18,27)(22,28)(23,25)

Conjugacy classes & character table

175 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1120, 768);