Finite Group Databasebeta

C7⋊(C42⋊C9) #11758886

order1008
isoclinismisoclinic class of C7⋊(C42⋊C3)
automorphism?
homologyAbelianization (H1) = C9 · Schur multiplier (H2) = C4

Aliases

unambiguous semidirect productC7⋊(C42⋊C9)
unambiguous semidirect productC42⋊(C7⋊C9)

Splittings

derived, HallC42×C7 ⋊ C9
SylowC42 ⋊ C7⋊C9
SylowC7 ⋊ C42⋊C9

Subgroups

subgroupG/H
center, hypercenterC3C7⋊(C42⋊C3)
commutator, hypocenterC42×C7C9
FrattiniC22×C3C22⋊ΓL(1,𝔽8)
Fitting, cosocleC3×C42×C7C3
socle, prime radicalC22×C3×C7A4
LCSG ▷ C42×C7
UCSC1 ◁ C3

34 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 252

Polycyclic presentation:

3^2,2^2,7,2^2|a^3=b,c^2=f,d^2=fg,c^a=cd,d^a=cfg,e^a=e^2,f^a=g,g^a=fg

Conjugacy classes & character table

120 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1008, 57);