Finite Group Databasebeta

C2×D1979 #21463678

order7916
automorphismAut(G) order 7828924
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD3958
direct productC2×D1979
unambiguous semidirect productC1979⋊C22
unambiguous semidirect product(C2×C1979)⋊C2

Splittings

Fitting, socleC2×C1979 ⋊ C2
derived, SylowC1979 ⋊ C22

Subgroups

subgroupG/H
center, hypercenterC2D1979
commutator, hypocenterC1979C22
FrattiniC1G
Fitting, socleC2×C1979C2
LCSG ▷ C1979
UCSC1 ◁ C2

10 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

1982 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC4×D1979, C22⋊D1979, D7916, …
maximal normal subgroup ofC4×D1979, C22⋊D1979, D7916, …
maximal quotient ofC4×D1979, C2×Dic1979, C22⋊D1979, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(7916, 3);