Finite Group Databasebeta

C2×D1999 #22547843

order7996
automorphismAut(G) order 7988004
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD3998
direct productC2×D1999
unambiguous semidirect productC1999⋊C22
unambiguous semidirect product(C2×C1999)⋊C2

Splittings

Fitting, socleC2×C1999 ⋊ C2
derived, SylowC1999 ⋊ C22

Subgroups

subgroupG/H
center, hypercenterC2D1999
commutator, hypocenterC1999C22
FrattiniC1G
Fitting, socleC2×C1999C2
LCSG ▷ C1999
UCSC1 ◁ C2

10 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

2002 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC4×D1999, C22⋊D1999, D7996, …
maximal normal subgroup ofC4×D1999, C22⋊D1999, D7996, …
maximal quotient ofC4×D1999, C2×Dic1999, C22⋊D1999, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(7996, 3);