Finite Group Databasebeta

ΓL(1,𝔽8)⋊D257 #24925130

order10794
automorphism?
homologyAbelianization (H1) = C2×C3 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productΓL(1,𝔽8)⋊D257
unambiguous semidirect productC257⋊AGL(1,𝔽7)
unambiguous semidirect productD1799⋊C3

Splittings

Fitting, socle, derived, HallC7×C257 ⋊ C2×C3
HallΓL(1,𝔽8)×C257 ⋊ C2
HallD1799 ⋊ C3
SylowC257 ⋊ AGL(1,𝔽7)
HallΓL(1,𝔽8) ⋊ D257
SylowC7 ⋊ C3×D257

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC7×C257C2×C3
LCSG ▷ C7×C257
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2,3,7,257|c^a=c^6,d^a=d^256,c^b=c^2

Conjugacy classes & character table

647 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×D257, C2×ΓL(1,𝔽8)⋊D257, C3×ΓL(1,𝔽8)⋊D257, …
maximal normal subgroup ofAGL(1,𝔽7)×D257, C2×ΓL(1,𝔽8)⋊D257, C3×ΓL(1,𝔽8)⋊D257
maximal quotient ofΓL(1,𝔽8)⋊Dic257, C2×ΓL(1,𝔽8)⋊D257, (C7⋊C9)⋊D257, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(10794, 12);