Finite Group Databasebeta

D5⋊(C9⋊C8) #10623649

order720
isoclinismisoclinic class of C9⋊AGL(1,𝔽5)
automorphism?
homologyAbelianization (H1) = C2×C8 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD5⋊(C9⋊C8)

Splittings

derived, HallC5×C9 ⋊ C2×C8
SylowC9 ⋊ D5⋊C8
SylowC5 ⋊ C2×C9⋊C8

Subgroups

subgroupG/H
center, hypercenterC4C9⋊AGL(1,𝔽5)
commutator, hypocenterC5×C9C2×C8
FrattiniC2×C3C2×ΓL(1,𝔽16)
FittingC4×C5×C9C4
socleC2×C3×C5C2×Dic3
prime radicalC2×C3×D5Dic3
cosocleC9×Dic5C22
LCSG ▷ C5×C9
UCSC1 ◁ C4

66 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 360

Polycyclic presentation:

2^4,3,5,3|a^2=c,b^2=d,c^2=d,e^3=g,e^a=e^2g^2,f^a=f^3,g^a=g^2,f^c=f^4

Conjugacy classes & character table

84 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽5)×C9⋊C8, #13083911, #13083916, …
maximal normal subgroup ofAGL(1,𝔽5)×C9⋊C8, #13083911, #13083916, …
maximal quotient ofD5⋊(C9⋊C16), #13083978, C4×C9⋊#170, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(720, 118);