Finite Group Databasebeta

D4⋊#14523348 #30657824

order16448
automorphism?
homologyAbelianization (H1) = C2×C8 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect productD4⋊#14523348

Splittings

FittingD4×C257 ⋊ C8
SylowC257 ⋊ D4⋊C8

Subgroups

subgroupG/H
centerC2C22⋊#14523348
commutatorC4×C257C2×C8
FrattiniC4C2×#14523348
FittingD4×C257C8
socleC2×C257C22⋊C8
prime radicalD4×D257C4
cosocleC4×#11759967C22
hypercenterD4#14523348
hypocenterC257D4⋊C8
LCSG ▷ C4×C257 ▷ C2×C257 ▷ C257
UCSC1 ◁ C2 ◁ C4 ◁ D4

82 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 2056

Polycyclic presentation:

2^6,257|a^2=d,c^2=e,d^2=f,b^a=bc,c^a=ce,g^a=g^64,c^b=ce,g^d=g^241,g^f=g^256

Conjugacy classes & character table

188 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16448, 1636);