Finite Group Databasebeta

C4⋊#16861632 #30657864

order16448
automorphism?
homologyAbelianization (H1) = C2×C16 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC4⋊#16861632

Splittings

FittingC4×C257 ⋊ C16
SylowC257 ⋊ C4⋊C16

Subgroups

subgroupG/H
center, FrattiniC2C2×#16861632
commutator, socleC2×C257C2×C16
FittingC4×C257C16
prime radicalC2×D257C2×C8
cosocleC2×#14523348C22
hypercenterC4#16861632
hypocenterC257C4⋊C16
LCSG ▷ C2×C257 ▷ C257
UCSC1 ◁ C2 ◁ C4

50 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 1028

Polycyclic presentation:

2^6,257|a^2=d,b^2=c,d^2=e,e^2=f,b^a=bc,g^a=g^249,g^d=g^64,g^e=g^241,g^f=g^256

Conjugacy classes & character table

104 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16448, 1676);