Finite Group Databasebeta

D57⋊(C7⋊D7) #26014019

order11172
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2×C7

Aliases

unambiguous semidirect productD57⋊(C7⋊D7)

Splittings

Fitting, socle, derived, HallC3×C72×C19 ⋊ C22
HallC72×C19 ⋊ C2×D3
HallC3×C72 ⋊ C2×D19
HallC3×C19 ⋊ C2×C7⋊D7
SylowC72 ⋊ D3×D19
SylowC19 ⋊ D3×C7⋊D7
SylowC3 ⋊ D19×C7⋊D7

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C72×C19C22
LCSG ▷ C3×C72×C19
UCSC1

200 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2^2,3,7^2,19|d^a=d^6,e^a=e^6,f^a=f^18,c^b=c^2,d^b=d^6,e^b=e^6

Conjugacy classes & character table

753 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD171⋊(C7⋊D7), #45692311, #45692312, …
maximal normal subgroup of#45692311, #45692312, #45692317, …
maximal quotient ofD171⋊(C7⋊D7), C3×D57⋊(C7⋊D7), D57⋊(C3⋊(C7⋊D7)), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(11172, 281);