Finite Group Databasebeta

D7×C19×D39 #35209159

order20748
automorphism?
homologyAbelianization (H1) = C22×C19 · Schur multiplier (H2) = C2

Aliases

direct productD7×C19×D39
unambiguous semidirect product(C3×D7)⋊(C19×D13)
unambiguous semidirect product(C13×D7)⋊(D3×C19)

Splittings

Fitting, socle, HallC3×C7×C13×C19 ⋊ C22
derived, HallC3×C7×C13 ⋊ C22×C19
HallC7×C13×C19 ⋊ C2×D3
HallC3×C13×C19 ⋊ C2×D7
HallC3×C7×C19 ⋊ C2×D13
HallC13×C19 ⋊ D3×D7
HallC7×C19 ⋊ C2×D39
HallC7×C13 ⋊ C2×D3×C19
HallC3×C19 ⋊ D7×D13
HallC3×C13 ⋊ C2×D7×C19
HallC3×C7 ⋊ C2×C19×D13
SylowC13 ⋊ D3×D7×C19
SylowC7 ⋊ C2×C19×D39
SylowC3 ⋊ D7×C19×D13

Subgroups

subgroupG/H
center, hypercenterC19D7×D39
commutator, cosocle, hypocenterC3×C7×C13C22×C19
FrattiniC1G
Fitting, socleC3×C7×C13×C19C22
LCSG ▷ C3×C7×C13
UCSC1 ◁ C19

80 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 5187

Conjugacy classes & character table

1995 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20748, 387);