Finite Group Databasebeta

ΓL(1,𝔽8)⋊(C19⋊#261) #35208956

order20748
automorphism?
homologyAbelianization (H1) = C3×C4 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productΓL(1,𝔽8)⋊(C19⋊#261)

Splittings

Fitting, socle, derived, HallC7×C13×C19 ⋊ C3×C4
HallC7⋊(C19⋊#261) ⋊ C3
HallC13×C19×ΓL(1,𝔽8) ⋊ C4
HallC19×ΓL(1,𝔽8) ⋊ #261
HallC13×ΓL(1,𝔽8) ⋊ Dic19
HallC13×C19 ⋊ ΓL(1,𝔽8)⋊C4
HallC7×C19 ⋊ C3×#261
HallC7×C13 ⋊ C3×Dic19
HallΓL(1,𝔽8) ⋊ C19⋊#261
SylowC19 ⋊ ΓL(1,𝔽8)⋊#261
SylowC13 ⋊ ΓL(1,𝔽8)⋊Dic19
SylowC7 ⋊ C3×C19⋊#261

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, hypocenterC7×C13×C19C3×C4
prime radicalC19×ΓL(1,𝔽8)×D13C2
cosocleC7×C19×D13C2×C3
LCSG ▷ C7×C13×C19
UCSC1

48 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 1729

Polycyclic presentation:

2,3,2,7,13,19|a^2=c,d^a=d^6,e^a=e^5,f^a=f^18,d^b=d^4,e^c=e^12

Conjugacy classes & character table

389 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20748, 184);