Finite Group Databasebeta

D21×C331 #28358012

order13902
isoclinismisoclinic class of D21
automorphism?
homologyAbelianization (H1) = C2×C331 · Schur multiplier (H2) = C1

Aliases

direct productD21×C331
unambiguous semidirect productC3⋊(D7×C331)
unambiguous semidirect productC7⋊(D3×C331)

Splittings

Fitting, socle, HallC3×C7×C331 ⋊ C2
derived, HallC3×C7 ⋊ C2×C331
HallC7×C331 ⋊ D3
HallC3×C331 ⋊ D7
SylowC7 ⋊ D3×C331
SylowC3 ⋊ D7×C331

Subgroups

subgroupG/H
center, hypercenterC331D21
commutator, cosocle, hypocenterC3×C7C2×C331
FrattiniC1G
Fitting, socleC3×C7×C331C2
LCSG ▷ C3×C7
UCSC1 ◁ C331

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 6951

Conjugacy classes & character table

3972 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD21×D331, D3×D7×C331, D21⋊D331, …
maximal normal subgroup ofD21×D331, D3×D7×C331, D21⋊D331, …
maximal quotient ofDic21×C331, C2×D21×C331

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(13902, 11);