Finite Group Databasebeta

D19×D105 #22547719

order7980
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

direct productD19×D105
unambiguous semidirect product(C3×D19)⋊D35
unambiguous semidirect product(C5×D19)⋊D21
unambiguous semidirect product(C7×D19)⋊D15

Splittings

Fitting, socle, derived, HallC3×C5×C7×C19 ⋊ C22
HallC5×C7×C19 ⋊ C2×D3
HallC3×C7×C19 ⋊ C2×D5
HallC3×C5×C19 ⋊ C2×D7
HallC7×C19 ⋊ C2×D15
HallC3×C5×C7 ⋊ C2×D19
HallC5×C19 ⋊ C2×D21
HallC3×C19 ⋊ C2×D35
HallC5×C7 ⋊ D3×D19
HallC3×C7 ⋊ D5×D19
SylowC19 ⋊ C2×D105
HallC3×C5 ⋊ D7×D19
SylowC7 ⋊ D15×D19
SylowC5 ⋊ D19×D21
SylowC3 ⋊ D19×D35

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, hypocenterC3×C5×C7×C19C22
LCSG ▷ C3×C5×C7×C19
UCSC1

80 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

594 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD19×D315, #11716321⋊D15, #11716322⋊D15, …
maximal normal subgroup of#11716321⋊D15, #11716322⋊D15, D19×C3⋊(C5⋊AGL(1,𝔽7)), …
maximal quotient ofD19×D315, C3×D19×D105, D57⋊D105, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(7980, 144);