Finite Group Databasebeta

C7×C4⋊#272 #13094502

order1512
isoclinismisoclinic class of #6229
automorphism?
homologyAbelianization (H1) = C22×C7 · Schur multiplier (H2) = C2

Aliases

direct productC7×C4⋊#272
unambiguous semidirect productC4⋊(C7×#272)

Splittings

FittingC4×C7×H(3,𝔽3) ⋊ C2
HallC7×H(3,𝔽3) ⋊ D4
SylowH(3,𝔽3) ⋊ C7×D4

Subgroups

subgroupG/H
center, socleC2×C3×C7C2×C3⋊D3
commutator, cosocleC2×H(3,𝔽3)C22×C7
FrattiniC2×C3C2×C7×C3⋊D3
FittingC4×C7×H(3,𝔽3)C2
hypercenterC3×C4×C7C3⋊D3
hypocenterH(3,𝔽3)C7×D4
LCSG ▷ C2×H(3,𝔽3) ▷ H(3,𝔽3)
UCSC1 ◁ C2×C3×C7 ◁ C3×C4×C7

176 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 252

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

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

Conjugacy classes & character table

217 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1512, 399);