Finite Group Databasebeta

D137⋊#355 #31797075

order17536
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

unambiguous semidirect productD137⋊#355

Splittings

SylowC137 ⋊ C2×#355

Subgroups

subgroupG/H
centerC2D137⋊#99
commutatorC2×C4×C137C22×C4
FrattiniC2×C4C22×#10587739
Fitting#124×C137C4
socleC2×C137C2×#99
prime radicalC2×D4×D137C4
cosocleC2×Dic274C23
hypercenter#124#10587739
hypocenterC137C2×#355
LCSG ▷ C2×C4×C137 ▷ C22×C137 ▷ C2×C137 ▷ C137
UCSC1 ◁ C2 ◁ C22 ◁ C2×Q8 ◁ #124

260 conjugacy classes of subgroups; only the 54 normal subgroups are shown.

normal subgroups only

This group has 260 conjugacy classes of subgroups — too many to draw. Only its 54 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,e^2=g,b^a=bd,d^a=df,f^a=fg,h^a=h^100,d^b=dg,e^b=efg,h^c=h^136,e^d=eg,h^e=h^136

Conjugacy classes & character table

502 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17536, 20796);