Finite Group Databasebeta

D7⋊(#120⋊C3) #13057644

order1344
isoclinismisoclinic class of D7⋊(#120⋊C3)
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C23

Aliases

unambiguous semidirect productD7⋊(#120⋊C3)
unambiguous semidirect product(D7⋊(C22⋊A4))⋊C2

Splittings

FittingC7×#120 ⋊ C2×C3
derivedC24×C7 ⋊ C22×C3
HallD7×#120 ⋊ C3
SylowC7 ⋊ C2×#120⋊C3

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, cosocle, hypocenterC24×C7C22×C3
FrattiniC22C2×D7⋊A4
FittingC7×#120C2×C3
socleC22×C7C22×A4
LCSG ▷ C24×C7
UCSC1

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

normal subgroups only

This group has 284 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) = 56

Polycyclic presentation:

2^2,3,2^4,7|h^a=h^6,d^b=df,e^b=efg,d^c=de,e^c=d,f^c=g,g^c=fg,h^c=h^2

Conjugacy classes & character table

34 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×#120⋊C3, #72215058, C2×D7⋊(#120⋊C3), …
maximal normal subgroup ofAGL(1,𝔽7)×#120⋊C3, C2×D7⋊(#120⋊C3)
maximal quotient of#72215058, #72276711, C2×D7⋊(#120⋊C3), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1344, 6933);