Finite Group Databasebeta

C2×D1939 #21441013

order7756
automorphismAut(G) order 6421968
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD3878
direct productC2×D1939
unambiguous semidirect product(C2×C7)⋊D277
unambiguous semidirect product(C2×C277)⋊D7

Splittings

Fitting, socleC2×C7×C277 ⋊ C2
derived, HallC7×C277 ⋊ C22
SylowC277 ⋊ C2×D7
SylowC7 ⋊ C2×D277

Subgroups

subgroupG/H
center, hypercenterC2D1939
commutator, hypocenterC7×C277C22
FrattiniC1G
Fitting, socleC2×C7×C277C2
LCSG ▷ C7×C277
UCSC1 ◁ C2

20 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

1942 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC2×#26042767, C2×#26042766, C2×ΓL(1,𝔽8)⋊D277, …
maximal normal subgroup ofC2×#26042767, C2×#26042766, C2×ΓL(1,𝔽8)⋊D277, …
maximal quotient ofD3×D1939, C2×C3×D1939, C2×D5817, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(7756, 9);