Finite Group Databasebeta

D21×C821 #46828409

order34482
automorphism?
homologyAbelianization (H1) = C2×C821 · Schur multiplier (H2) = C1

Aliases

direct productD21×C821
unambiguous semidirect productC3⋊(D7×C821)
unambiguous semidirect productC7⋊(D3×C821)

Splittings

Fitting, socle, HallC3×C7×C821 ⋊ C2
derived, HallC3×C7 ⋊ C2×C821
HallC7×C821 ⋊ D3
HallC3×C821 ⋊ D7
SylowC7 ⋊ D3×C821
SylowC3 ⋊ D7×C821

Subgroups

subgroupG/H
center, hypercenterC821D21
commutator, cosocle, hypocenterC3×C7C2×C821
FrattiniC1G
Fitting, socleC3×C7×C821C2
LCSG ▷ C3×C7
UCSC1 ◁ C821

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 17241

Conjugacy classes & character table

9852 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(34482, 8);