Finite Group Databasebeta

(C7⋊C9)⋊D9 #11765617

order1134
isoclinismisoclinic class of ΓL(1,𝔽8)⋊D9
automorphism?
homologyAbelianization (H1) = C2×C9 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect product(C7⋊C9)⋊D9

Splittings

derivedC7×C9 ⋊ C2×C9
HallC9×C7⋊C9 ⋊ C2
SylowC7 ⋊ C9×D9

Subgroups

subgroupG/H
center, hypercenterC3ΓL(1,𝔽8)⋊D9
commutator, hypocenterC7×C9C2×C9
FrattiniC32C3⋊AGL(1,𝔽7)
Fitting, cosocleC3×C7×C9C2×C3
socleC32×C7C3×D3
prime radicalC3×D63C3
LCSG ▷ C7×C9
UCSC1 ◁ C3

50 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 126

Polycyclic presentation:

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

Conjugacy classes & character table

81 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC9×ΓL(1,𝔽8)⋊D9, #72229941, #72229943, …
maximal normal subgroup ofC9×ΓL(1,𝔽8)⋊D9, #72229941, #72229943, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1134, 47);