Finite Group Databasebeta

C2×D2161 #22575692

order8644
automorphismAut(G) order 9335520
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD4322
direct productC2×D2161
unambiguous semidirect productC2161⋊C22
unambiguous semidirect product(C2×C2161)⋊C2

Splittings

Fitting, socleC2×C2161 ⋊ C2
derived, SylowC2161 ⋊ C22

Subgroups

subgroupG/H
center, hypercenterC2D2161
commutator, hypocenterC2161C22
FrattiniC1G
Fitting, socleC2×C2161C2
LCSG ▷ C2161
UCSC1 ◁ C2

10 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

2164 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC4×D2161, C22⋊D2161, D8644, …
maximal normal subgroup ofC4×D2161, C22⋊D2161, D8644, …
maximal quotient ofC4×D2161, C2×Dic2161, C22⋊D2161, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(8644, 4);