Finite Group Databasebeta

D171⋊D25 #30685393

order17100
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD171⋊D25
unambiguous semidirect productD225⋊D19
unambiguous semidirect productD475⋊D9

Splittings

Fitting, derived, HallC9×C19×C25 ⋊ C22
HallC19×C25 ⋊ C2×D9
HallC9×C25 ⋊ C2×D19
HallC9×C19 ⋊ C2×D25
SylowC25 ⋊ D9×D19
SylowC19 ⋊ D9×D25
SylowC9 ⋊ D19×D25

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC9×C19×C25C22
FrattiniC3×C5D15⋊D19
socleC3×C5×C19D3×D5
LCSG ▷ C9×C19×C25
UCSC1

90 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 4275

Polycyclic presentation:

2^2,3,5,19,3,5|c^3=f^2,d^5=g^4,d^a=d^4g,e^a=e^18,g^a=g^4,c^b=c^2f,d^b=d^4g,f^b=f^2,g^b=g^4

Conjugacy classes & character table

1110 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17100, 30);