Finite Group Databasebeta

D45⋊D139 #38736208

order25020
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD45⋊D139
unambiguous semidirect productD695⋊D9
unambiguous semidirect productD1251⋊D5

Splittings

Fitting, derived, HallC5×C9×C139 ⋊ C22
HallC9×C139 ⋊ C2×D5
HallC5×C139 ⋊ C2×D9
SylowC139 ⋊ D5×D9
HallC5×C9 ⋊ C2×D139
SylowC9 ⋊ D5×D139
SylowC5 ⋊ D9×D139

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC5×C9×C139C22
FrattiniC3D15⋊D139
socleC3×C5×C139C2×D3
LCSG ▷ C5×C9×C139
UCSC1

60 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 6255

Polycyclic presentation:

2^2,3,5,139,3|c^3=f^2,d^a=d^4,e^a=e^138,c^b=c^2f,d^b=d^4,f^b=f^2

Conjugacy classes & character table

1680 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(25020, 30);