Finite Group Databasebeta

(C7⋊C9)⋊D257 #44569210

order32382
automorphism?
homologyAbelianization (H1) = C2×C9 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect product(C7⋊C9)⋊D257
unambiguous semidirect productC257⋊(D7⋊C9)
unambiguous semidirect productD1799⋊C9

Splittings

derived, HallC7×C257 ⋊ C2×C9
HallC7⋊C9×C257 ⋊ C2
HallD1799 ⋊ C9
SylowC257 ⋊ D7⋊C9
HallC7⋊C9 ⋊ D257
SylowC7 ⋊ C9×D257

Subgroups

subgroupG/H
center, Frattini, hypercenterC3ΓL(1,𝔽8)⋊D257
commutator, hypocenterC7×C257C2×C9
Fitting, socle, cosocleC3×C7×C257C2×C3
prime radicalC3×D1799C3
LCSG ▷ C7×C257
UCSC1 ◁ C3

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 16191

Polycyclic presentation:

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

Conjugacy classes & character table

1941 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(32382, 12);