Finite Group Databasebeta

#11720106⋊C2 #13136135

order1728
isoclinismisoclinic class of #11720106⋊C2
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect product#11720106⋊C2

Splittings

derivedC42⋊C27 ⋊ C22

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, cosocle, hypocenterC42⋊C27C22
FrattiniC22×C9C2×S4
FittingC9×#127D3
socleC22×C3C2×(C22⋊C9)⋊C2
LCSG ▷ C42⋊C27
UCSC1

219 conjugacy classes of subgroups; only the 20 normal subgroups are shown.

normal subgroups only

This group has 219 conjugacy classes of subgroups — too many to draw. Only its 20 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) = 108

Polycyclic presentation:

2^2,3^3,2^4|c^3=d,d^3=e,f^2=h,g^2=i,c^a=c^2d^2e^2,d^a=d^2e^2,e^a=e^2,f^a=fgi,g^a=gi,h^a=hi,f^b=fh,g^b=gi,f^c=gh,g^c=fg,h^c=i,i^c=hi

Conjugacy classes & character table

54 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1728, 2198);