Finite Group Databasebeta

C9×C7⋊Dic77 #34084648

order19404
automorphism?
homologyAbelianization (H1) = C4×C9 · Schur multiplier (H2) = C7

Aliases

direct productC9×C7⋊Dic77
unambiguous semidirect productC11⋊(C9×C7⋊Dic7)

Splittings

derived, HallC72×C11 ⋊ C4×C9
HallC72×C9×C11 ⋊ C4
HallC72×C9 ⋊ Dic11
HallC9×C11 ⋊ C7⋊Dic7
SylowC72 ⋊ C9×Dic11
SylowC11 ⋊ C9×C7⋊Dic7

Subgroups

subgroupG/H
center, hypercenterC2×C9C7⋊D77
commutator, hypocenterC72×C11C4×C9
FrattiniC2×C3C3×C7⋊D77
FittingC2×C72×C9×C11C2
socle, prime radical, cosocleC2×C3×C72×C11C2×C3
LCSG ▷ C72×C11
UCSC1 ◁ C2×C9

180 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 19404

Conjugacy classes & character table

4878 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19404, 139);