Finite Group Databasebeta

C2×C7×D639 #31822025

order17892
automorphism?
homologyAbelianization (H1) = C22×C7 · Schur multiplier (H2) = C2

Aliases

direct productC2×C7×D639
unambiguous semidirect product(C2×C9)⋊(C7×D71)

Splittings

FittingC2×C7×C9×C71 ⋊ C2
derived, HallC9×C71 ⋊ C22×C7
HallC7×C9×C71 ⋊ C22
HallC7×C71 ⋊ C2×D9
SylowC71 ⋊ C2×C7×D9
HallC7×C9 ⋊ C2×D71
SylowC9 ⋊ C2×C7×D71

Subgroups

subgroupG/H
center, hypercenterC2×C7D639
commutator, cosocle, hypocenterC9×C71C22×C7
FrattiniC3C2×C7×D213
FittingC2×C7×C9×C71C2
socleC2×C3×C7×C71D3
LCSG ▷ C9×C71
UCSC1 ◁ C2×C7

60 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 8946

Conjugacy classes & character table

4494 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17892, 42);