Finite Group Databasebeta

Dic9×C71⋊C7 #31821995

order17892
automorphism?
homologyAbelianization (H1) = C4×C7 · Schur multiplier (H2) = C1

Aliases

direct productDic9×C71⋊C7
unambiguous semidirect productC9⋊(C4×C71⋊C7)
unambiguous semidirect product(Dic9×C71)⋊C7

Splittings

derived, HallC9×C71 ⋊ C4×C7
HallC9×C71⋊C7 ⋊ C4
HallDic9×C71 ⋊ C7
SylowC71 ⋊ C7×Dic9
SylowC9 ⋊ C4×C71⋊C7

Subgroups

subgroupG/H
center, hypercenterC2D9×C71⋊C7
commutator, hypocenterC9×C71C4×C7
FrattiniC2×C3D3×C71⋊C7
Fitting, cosocleC2×C9×C71C2×C7
socleC2×C3×C71D3×C7
prime radicalC2×C3×C71⋊C7D3
LCSG ▷ C9×C71
UCSC1 ◁ C2

36 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 2556

Conjugacy classes & character table

204 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17892, 12);