Finite Group Databasebeta

ΓL(1,𝔽8)⋊D421 #31799088

order17682
automorphism?
homologyAbelianization (H1) = C2×C3 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productΓL(1,𝔽8)⋊D421

Splittings

Fitting, socle, derived, HallC7×C421 ⋊ C2×C3
HallΓL(1,𝔽8)×C421 ⋊ C2
HallD2947 ⋊ C3
SylowC421 ⋊ AGL(1,𝔽7)
HallΓL(1,𝔽8) ⋊ D421
SylowC7 ⋊ C3×D421

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC7×C421C2×C3
LCSG ▷ C7×C421
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 2947

Polycyclic presentation:

2,3,7,421|c^a=c^6,d^a=d^420,c^b=c^2

Conjugacy classes & character table

1057 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofAGL(1,𝔽7)×D421, C2×ΓL(1,𝔽8)⋊D421
maximal normal subgroup ofAGL(1,𝔽7)×D421, C2×ΓL(1,𝔽8)⋊D421
maximal quotient ofΓL(1,𝔽8)⋊Dic421, C2×ΓL(1,𝔽8)⋊D421

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17682, 27);