Finite Group Databasebeta

C7×#4013 #11764665

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

Aliases

direct productC7×#4013

Splittings

HallC5×C7 ⋊ #100
SylowC5 ⋊ C7×#100

Subgroups

subgroupG/H
centerC2×C7C22⋊AGL(1,𝔽5)
commutatorC22×C5C2×C4×C7
FrattiniC22C2×C7×AGL(1,𝔽5)
FittingC23×C5×C7C4
socleC2×C5×C7C22⋊C4
prime radicalC2×C7×C22⋊D5C2
cosocleC2×Dic5C22×C7
hypercenterC23×C7AGL(1,𝔽5)
hypocenterC5C7×#100
LCSG ▷ C22×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2×C7 ◁ C22×C7 ◁ C23×C7

92 conjugacy classes of subgroups.

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)(15,19);(9,10,11,12)(13,14,15,18,16,17,19,20)

Conjugacy classes & character table

133 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1120, 271);