Finite Group Databasebeta

D7⋊(#127⋊C3) #13057650

order1344
isoclinismisoclinic class of D7⋊(#127⋊C3)
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2×C4

Aliases

unambiguous semidirect productD7⋊(#127⋊C3)

Splittings

FittingC7×#127 ⋊ C2×C3
derivedC42×C7 ⋊ C22×C3
HallD7×#127 ⋊ C3
SylowC7 ⋊ C2×#127⋊C3

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, cosocle, hypocenterC42×C7C22×C3
FrattiniC22C2×D7⋊A4
FittingC7×#127C2×C3
socleC22×C7C22×A4
LCSG ▷ C42×C7
UCSC1

216 conjugacy classes of subgroups; only the 22 normal subgroups are shown.

normal subgroups only

This group has 216 conjugacy classes of subgroups — too many to draw. Only its 22 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 84

Polycyclic presentation:

2^2,3,2^2,7,2^2|d^2=g,e^2=gh,f^a=f^6,d^b=dg,e^b=egh,d^c=de,e^c=dgh,f^c=f^2,g^c=h,h^c=gh

Conjugacy classes & character table

34 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72277323, AGL(1,𝔽7)×#127⋊C3
maximal normal subgroup ofAGL(1,𝔽7)×#127⋊C3

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1344, 6939);