Finite Group Databasebeta

C7×D21×C53 #29510061

order15582
isoclinismisoclinic class of D21
automorphism?
homologyAbelianization (H1) = C2×C7×C53 · Schur multiplier (H2) = C1

Aliases

direct productC7×D21×C53
unambiguous semidirect productC3⋊(C7×D7×C53)
unambiguous semidirect productC7⋊(D3×C7×C53)

Splittings

Fitting, socle, HallC3×C72×C53 ⋊ C2
derivedC3×C7 ⋊ C2×C7×C53
HallC72×C53 ⋊ D3
HallC3×C53 ⋊ C7×D7
HallC3×C72 ⋊ C2×C53
SylowC72 ⋊ D3×C53
SylowC3 ⋊ C7×D7×C53

Subgroups

subgroupG/H
center, hypercenterC7×C53D21
commutator, cosocle, hypocenterC3×C7C2×C7×C53
FrattiniC1G
Fitting, socleC3×C72×C53C2
LCSG ▷ C3×C7
UCSC1 ◁ C7×C53

44 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 2226

Conjugacy classes & character table

4452 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC7×D21×D53, D3×C7×D7×C53, C7×D21⋊D53, …
maximal normal subgroup ofC7×D21×D53, D3×C7×D7×C53, C7×D21⋊D53, …
maximal quotient ofC7×C53×Dic21, C2×C7×D21×C53

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(15582, 39);