Finite Group Databasebeta

D21×D19⋊C3 #18012249

order4788
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2

Aliases

direct productD21×D19⋊C3
unambiguous semidirect productD19⋊(C3×D21)
unambiguous semidirect product(C3×D19⋊C3)⋊D7
unambiguous semidirect product(C7×D19⋊C3)⋊D3

Splittings

Fitting, socle, derivedC3×C7×C19 ⋊ C22×C3
HallC3×C7×C19⋊C3 ⋊ C22
HallC3×C19⋊C3 ⋊ C2×D7
HallC7×C19 ⋊ C2×C3×D3
SylowC19 ⋊ C2×C3×D21
SylowC7 ⋊ D3×D19⋊C3

Subgroups

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

88 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 29
transitive degreeμt(G) = 399

Conjugacy classes & character table

108 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC5×D21×D19⋊C3, D19⋊C3×D105, D21×C5⋊(D19⋊C3), …
maximal normal subgroup ofC5×D21×D19⋊C3, C7×D21×D19⋊C3
maximal quotient ofC5×D21×D19⋊C3, D19⋊C3×D105, D21×C5⋊(D19⋊C3), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(4788, 165);