Finite Group Databasebeta

C2×M16×D257 #30657495

order16448
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×M16×D257

Splittings

FittingC2×M16×C257 ⋊ C2
SylowC257 ⋊ C22×M16

Subgroups

subgroupG/H
centerC2×C4C22×D257
commutatorC2×C257C23×C4
FrattiniC4C23×D257
FittingC2×M16×C257C2
socleC22×C257C22×C4
prime radicalC23×D257C4
cosocleC4×C257C24
hypercenterC2×M16D257
hypocenterC257C22×M16
LCSG ▷ C2×C257 ▷ C257
UCSC1 ◁ C2×C4 ◁ C2×M16

298 conjugacy classes of subgroups; only the 159 normal subgroups are shown.

normal subgroups only

This group has 298 conjugacy classes of subgroups — too many to draw. Only its 159 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 4112

Conjugacy classes & character table

2600 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofH(3,ℤ/4)×D257, #338×D257, #339×D257, …
maximal normal subgroup ofH(3,ℤ/4)×D257, #338×D257, #339×D257, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16448, 1307);