Finite Group Databasebeta

((C2×D7)⋊C4)⋊C9 #11758846

order1008
automorphism?
homologyAbelianization (H1) = C2×C4×C9 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect product((C2×D7)⋊C4)⋊C9
unambiguous semidirect product(C2×D7⋊C9)⋊C4

Splittings

Hall(C2×D7)⋊C4 ⋊ C9
HallC7⋊C9 ⋊ C22⋊C4
SylowC7 ⋊ C9×C22⋊C4

Subgroups

subgroupG/H
center, FrattiniC22×C3C2×AGL(1,𝔽7)
commutatorC2×C7C2×C4×C9
FittingC2×C3×C4×C7C2×C3
socle, cosocleC22×C3×C7C22×C3
prime radicalC22×C3×D7C2×C3
hypercenterC2×C3×C4AGL(1,𝔽7)
hypocenterC7C9×C22⋊C4
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C22×C3 ◁ C2×C3×C4

102 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 504

Polycyclic presentation:

2^2,3,2^2,3,7|b^2=d,c^3=f,b^a=be,g^a=g^6,g^c=g^2

Conjugacy classes & character table

114 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1008, 17);