Finite Group Databasebeta

D57⋊D139 #44540110

order31692
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD57⋊D139
unambiguous semidirect productD417⋊D19
unambiguous semidirect productD2641⋊D3

Splittings

Fitting, socle, derived, HallC3×C19×C139 ⋊ C22
HallC19×C139 ⋊ C2×D3
HallC3×C139 ⋊ C2×D19
SylowC139 ⋊ D3×D19
HallC3×C19 ⋊ C2×D139
SylowC19 ⋊ D3×D139
SylowC3 ⋊ D19×D139

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C19×C139C22
LCSG ▷ C3×C19×C139
UCSC1

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 7923

Polycyclic presentation:

2^2,3,19,139|d^a=d^18,e^a=e^138,c^b=c^2,d^b=d^18

Conjugacy classes & character table

2103 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(31692, 48);