Finite Group Databasebeta

D57⋊D105 #37561568

order23940
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD57⋊D105

Splittings

Fitting, socle, derived, HallC32×C5×C7×C19 ⋊ C22
HallC32×C7×C19 ⋊ C2×D5
HallC32×C5×C19 ⋊ C2×D7
HallC5×C7×C19 ⋊ D32
HallC32×C5×C7 ⋊ C2×D19
HallC32×C19 ⋊ C2×D35
HallC7×C19 ⋊ D3×D15
HallC5×C19 ⋊ D3×D21
HallC32×C7 ⋊ D5×D19
HallC32×C5 ⋊ D7×D19
HallC5×C7 ⋊ (C3⋊D3)⋊D19
SylowC19 ⋊ D3×D105
SylowC32 ⋊ D19×D35
SylowC7 ⋊ D57⋊D15
SylowC5 ⋊ D57⋊D21

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC32×C5×C7×C19C22
LCSG ▷ C32×C5×C7×C19
UCSC1

176 conjugacy classes of subgroups; only the 45 normal subgroups are shown.

normal subgroups only

This group has 176 conjugacy classes of subgroups — too many to draw. Only its 45 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 3990

Polycyclic presentation:

2^2,3^2,5,7,19|d^a=d^2,g^a=g^18,c^b=c^2,d^b=d^2,e^b=e^4,f^b=f^6

Conjugacy classes & character table

1593 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(23940, 700);