Finite Group Databasebeta

D4⋊#14555522 #31797831

order17536
automorphism?
homologyAbelianization (H1) = C2×C16 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect productD4⋊#14555522

Splittings

SylowC137 ⋊ D4⋊C16

Subgroups

subgroupG/H
centerC22C22⋊#11764049
commutatorC4×C137C2×C16
FrattiniC2×C4C2×#11764049
Fitting, prime radicalC2×D4×C137C8
socleC22×C137C22⋊C8
cosocleC4×#11764047C22
hypercenterC2×D4#11764049
hypocenterC137D4⋊C16
LCSG ▷ C4×C137 ▷ C2×C137 ▷ C137
UCSC1 ◁ C22 ◁ C2×C4 ◁ C2×D4

110 conjugacy classes of subgroups; only the 39 normal subgroups are shown.

normal subgroups only

This group has 110 conjugacy classes of subgroups — too many to draw. Only its 39 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) = 8768

Polycyclic presentation:

2^7,137|a^2=d,c^2=e,d^2=f,f^2=g,b^a=bc,c^a=ce,h^a=h^127,c^b=ce,h^d=h^100,h^f=h^136

Conjugacy classes & character table

226 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17536, 21552);