Finite Group Databasebeta

C2×D7×C421 #26044572

order11788
isoclinismisoclinic class of D7
automorphism?
homologyAbelianization (H1) = C22×C421 · Schur multiplier (H2) = C2

Aliases

direct productC2×D7×C421
unambiguous semidirect productC7⋊(C22×C421)
unambiguous semidirect product(C2×C7)⋊(C2×C421)

Splittings

Fitting, socleC2×C7×C421 ⋊ C2
derived, SylowC7 ⋊ C22×C421
HallC7×C421 ⋊ C22

Subgroups

subgroupG/H
center, hypercenterC2×C421D7
commutator, cosocle, hypocenterC7C22×C421
FrattiniC1G
Fitting, socleC2×C7×C421C2
LCSG ▷ C7
UCSC1 ◁ C2×C421

20 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

4210 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC2×AGL(1,𝔽7)×C421, C2×#31799086, C2×#31799085, …
maximal normal subgroup ofC2×AGL(1,𝔽7)×C421, C2×#31799086, C2×#31799085, …
maximal quotient ofD3×D7×C421, C2×C3×D7×C421, C2×D21×C421

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(11788, 15);