Finite Group Databasebeta

D21×C31⋊C3 #16840907

order3906
automorphism?
homologyAbelianization (H1) = C2×C3 · Schur multiplier (H2) = C1

Aliases

direct productD21×C31⋊C3
unambiguous semidirect productC3⋊(D7×C31⋊C3)

Splittings

Fitting, socle, derivedC3×C7×C31 ⋊ C2×C3
HallC3×C7×C31⋊C3 ⋊ C2
HallC3×C31⋊C3 ⋊ D7
HallC7×C31 ⋊ C3×D3
SylowC31 ⋊ C3×D21
SylowC7 ⋊ D3×C31⋊C3

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C7×C31C2×C3
LCSG ▷ C3×C7×C31
UCSC1

36 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 41
transitive degreeμt(G) = 651

Conjugacy classes & character table

156 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD21×(C31⋊C3)⋊C5, C5×D21×C31⋊C3, C31⋊C3×D105, …
maximal normal subgroup ofD21×(C31⋊C3)⋊C5, C5×D21×C31⋊C3, C7×D21×C31⋊C3
maximal quotient ofC5×D21×C31⋊C3, C31⋊C3×D105, C31⋊C3×D147, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(3906, 57);