Finite Group Databasebeta

C7×Dic9×C71 #31821990

order17892
isoclinismisoclinic class of D9
automorphism?
homologyAbelianization (H1) = C4×C7×C71 · Schur multiplier (H2) = C1

Aliases

direct productC7×Dic9×C71
unambiguous semidirect productC9⋊(C4×C7×C71)

Splittings

derived, SylowC9 ⋊ C4×C7×C71
HallC7×C9×C71 ⋊ C4
HallC9×C71 ⋊ C4×C7
HallC7×C9 ⋊ C4×C71

Subgroups

subgroupG/H
center, hypercenterC2×C7×C71D9
commutator, hypocenterC9C4×C7×C71
FrattiniC2×C3D3×C7×C71
FittingC2×C7×C9×C71C2
socle, prime radicalC2×C3×C7×C71D3
cosocleC2×C9C2×C7×C71
LCSG ▷ C9
UCSC1 ◁ C2×C7×C71

36 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 17892

Conjugacy classes & character table

5964 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17892, 7);