Finite Group Databasebeta

(ΓL(1,𝔽8)⋊D19)⋊D15 #37561349

order23940
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect product(ΓL(1,𝔽8)⋊D19)⋊D15

Splittings

Fitting, socle, derivedC3×C5×C7×C19 ⋊ C22×C3
HallC3×C5×C19×ΓL(1,𝔽8) ⋊ C22
HallC3×C19×ΓL(1,𝔽8) ⋊ C2×D5
HallC5×C7×C19 ⋊ C2×C3×D3
HallC3×C5×ΓL(1,𝔽8) ⋊ C2×D19
HallC7×C19 ⋊ C2×C3×D15
HallC5×C19 ⋊ D3×AGL(1,𝔽7)
HallC3×ΓL(1,𝔽8) ⋊ D5×D19
HallC5×C7 ⋊ C3×D3×D19
SylowC19 ⋊ D15×AGL(1,𝔽7)
SylowC7 ⋊ C3×D15×D19
SylowC5 ⋊ (C3⋊AGL(1,𝔽7))⋊D19

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C5×C7×C19C22×C3
LCSG ▷ C3×C5×C7×C19
UCSC1

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

normal subgroups only

This group has 176 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) = 1995

Polycyclic presentation:

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

Conjugacy classes & character table

441 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(23940, 481);