Finite Group Databasebeta

D7×D21×C53 #44528463

order31164
automorphism?
homologyAbelianization (H1) = C22×C53 · Schur multiplier (H2) = C2

Aliases

direct productD7×D21×C53
unambiguous semidirect product(C3×D7)⋊(D7×C53)
unambiguous semidirect product(C7×D7)⋊(D3×C53)

Splittings

Fitting, socle, HallC3×C72×C53 ⋊ C22
derived, HallC3×C72 ⋊ C22×C53
HallC72×C53 ⋊ C2×D3
HallC3×C53 ⋊ D72
SylowC72 ⋊ C2×D3×C53
SylowC3 ⋊ D72×C53

Subgroups

subgroupG/H
center, hypercenterC53D7×D21
commutator, cosocle, hypocenterC3×C72C22×C53
FrattiniC1G
Fitting, socleC3×C72×C53C22
LCSG ▷ C3×C72
UCSC1 ◁ C53

104 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 2226

Conjugacy classes & character table

3180 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(31164, 155);