Finite Group Databasebeta

D137⋊#327 #31796155

order17536
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

unambiguous semidirect productD137⋊#327

Splittings

Fitting#121×C137 ⋊ C4
SylowC137 ⋊ C2×#327

Subgroups

subgroupG/H
centerC22C2×C22⋊#10587739
commutatorC2×C4×C137C22×C4
FrattiniC2×C4C22×#10587739
Fitting#121×C137C4
socleC22×C137C2×C22⋊C4
prime radical#121×D137C2
cosocleC2×C4×D137C23
hypercenter#121#10587739
hypocenterC137C2×#327
LCSG ▷ C2×C4×C137 ▷ C22×C137 ▷ C137
UCSC1 ◁ C22 ◁ C22×C4 ◁ #121

388 conjugacy classes of subgroups; only the 74 normal subgroups are shown.

normal subgroups only

This group has 388 conjugacy classes of subgroups — too many to draw. Only its 74 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) = 2192

Polycyclic presentation:

2^7,137|a^2=e,d^2=g,b^a=bd,d^a=df,h^a=h^100,d^b=dg,e^b=efg,h^c=h^136,h^e=h^136

Conjugacy classes & character table

514 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17536, 19876);