Finite Group Databasebeta

(ΓL(1,𝔽8)⋊D19)⋊D21 #45692341

order33516
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect product(ΓL(1,𝔽8)⋊D19)⋊D21

Splittings

Fitting, socle, derivedC3×C72×C19 ⋊ C22×C3
HallC3×C7×C19×ΓL(1,𝔽8) ⋊ C22
HallC72×C19 ⋊ C2×C3×D3
HallC3×C7×ΓL(1,𝔽8) ⋊ C2×D19
SylowC72 ⋊ C3×D3×D19
SylowC19 ⋊ AGL(1,𝔽7)×D21

Subgroups

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

184 conjugacy classes of subgroups; only the 41 normal subgroups are shown.

normal subgroups only

This group has 184 conjugacy classes of subgroups — too many to draw. Only its 41 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 2394

Polycyclic presentation:

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

Conjugacy classes & character table

597 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(33516, 1139);