Finite Group Databasebeta

#19128625⋊C2 #24922600

order10668
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect product#19128625⋊C2
unambiguous semidirect product#19128629⋊C2
unambiguous semidirect product#19128633⋊C2

Splittings

Fitting, socle, derived, HallC7×C127 ⋊ C22×C3
HallD7×D127 ⋊ C3
Hall#14581887 ⋊ C22
SylowC127 ⋊ C2×AGL(1,𝔽7)
SylowC7 ⋊ C2×D127⋊C3

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC7×C127C22×C3
LCSG ▷ C7×C127
UCSC1

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2^2,3,7,127|e^a=e^126,d^b=d^6,d^c=d^2,e^c=e^19

Conjugacy classes & character table

119 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×D127⋊C3, C3×#19128625⋊C2, #19128625⋊D3, …
maximal normal subgroup ofAGL(1,𝔽7)×D127⋊C3, C3×#19128625⋊C2
maximal quotient of#30630664⋊C2, C3×#19128625⋊C2, #19128625⋊D3, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(10668, 41);