Finite Group Databasebeta

D19×D7⋊C9 #18012111

order4788
automorphism?
homologyAbelianization (H1) = C22×C9 · Schur multiplier (H2) = C2

Aliases

direct productD19×D7⋊C9
unambiguous semidirect productD7⋊(C9×D19)
unambiguous semidirect product(D19×C7⋊C9)⋊C2
unambiguous semidirect product(C19×D7⋊C9)⋊C2
unambiguous semidirect product((C7⋊C9)⋊D19)⋊C2

Splittings

derived, HallC7×C19 ⋊ C22×C9
HallC19×C7⋊C9 ⋊ C22
HallD7×D19 ⋊ C9
HallC7⋊C9 ⋊ C2×D19
SylowC19 ⋊ C2×D7⋊C9
SylowC7 ⋊ C2×C9×D19

Subgroups

subgroupG/H
center, Frattini, hypercenterC3D19×AGL(1,𝔽7)
commutator, hypocenterC7×C19C22×C9
Fitting, socle, cosocleC3×C7×C19C22×C3
prime radicalC3×D7×D19C3
LCSG ▷ C7×C19
UCSC1 ◁ C3

60 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 35
transitive degreeμt(G) = 1197

Conjugacy classes & character table

231 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC5×D19×D7⋊C9, D19×C5⋊(D7⋊C9), D7⋊C9×D95, …
maximal normal subgroup ofC5×D19×D7⋊C9, C7×D19×D7⋊C9
maximal quotient ofC5×D19×D7⋊C9, D19×C5⋊(D7⋊C9), D7⋊C9×D95, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(4788, 27);