Finite Group Databasebeta

#17987079⋊C2 #22603886

order9156
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect product#17987079⋊C2
unambiguous semidirect product#17987083⋊C2
unambiguous semidirect product#17987087⋊C2

Splittings

Fitting, socle, derived, HallC7×C109 ⋊ C22×C3
HallD7×D109 ⋊ C3
Hall#14556233 ⋊ C22
SylowC109 ⋊ C2×AGL(1,𝔽7)
SylowC7 ⋊ C2×D109⋊C3

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, hypocenterC7×C109C22×C3
LCSG ▷ C7×C109
UCSC1

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2^2,3,7,109|e^a=e^108,d^b=d^6,d^c=d^2,e^c=e^45

Conjugacy classes & character table

104 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×D109⋊C3, C3×#17987079⋊C2, #17987079⋊D3, …
maximal normal subgroup ofAGL(1,𝔽7)×D109⋊C3, C3×#17987079⋊C2
maximal quotient of#28351522⋊C2, C3×#17987079⋊C2, #17987079⋊D3, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(9156, 30);