Finite Group Databasebeta

C7×D7×D31⋊C3 #32912137

order18228
automorphism?
homologyAbelianization (H1) = C22×C3×C7 · Schur multiplier (H2) = C2

Aliases

direct productC7×D7×D31⋊C3
unambiguous semidirect productD31⋊(C3×C7×D7)
unambiguous semidirect product(C7×D31⋊C3)⋊(C2×C7)
unambiguous semidirect product(D7×C31⋊C3)⋊(C2×C7)
unambiguous semidirect product((C31⋊C3)⋊D7)⋊(C2×C7)

Splittings

Fitting, socle, HallC72×C31 ⋊ C22×C3
derivedC7×C31 ⋊ C22×C3×C7
HallC7×D7×D31 ⋊ C3
HallC72×C31⋊C3 ⋊ C22
HallC31⋊C3 ⋊ C2×C7×D7
SylowC72 ⋊ C2×D31⋊C3
SylowC31 ⋊ C2×C3×C7×D7

Subgroups

subgroupG/H
center, hypercenterC7D7×D31⋊C3
commutator, cosocle, hypocenterC7×C31C22×C3×C7
FrattiniC1G
Fitting, socleC72×C31C22×C3
LCSG ▷ C7×C31
UCSC1 ◁ C7

104 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 434

Conjugacy classes & character table

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

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(18228, 145);