Finite Group Databasebeta

C9×D821 #28414356

order14778
automorphism?
homologyAbelianization (H1) = C2×C9 · Schur multiplier (H2) = C1

Aliases

direct productC9×D821
unambiguous semidirect productC821⋊(C2×C9)

Splittings

Fitting, HallC9×C821 ⋊ C2
derived, SylowC821 ⋊ C2×C9

Subgroups

subgroupG/H
center, hypercenterC9D821
commutator, hypocenterC821C2×C9
FrattiniC3C3×D821
FittingC9×C821C2
socle, cosocleC3×C821C2×C3
prime radicalC3×D821C3
LCSG ▷ C821
UCSC1 ◁ C9

12 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 7389

Conjugacy classes & character table

3708 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC9×#15692846, C9⋊#15692846, D9×D821, …
maximal normal subgroup ofC9×#15692846, C9⋊#15692846, D9×D821, …
maximal quotient ofC9×Dic821, C2×C9×D821

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(14778, 3);