Finite Group Databasebeta

C9×#339 #10588263

order576
nilpotency class3
isoclinismisoclinic class of D8
automorphism?
homologyAbelianization (H1) = C42×C9 · Schur multiplier (H2) = C22

Aliases

direct productC9×#339

Subgroups

subgroupG/H
centerC2×C4×C9D4
commutatorC4C42×C9
Frattini, cosocleC22×C3×C4C22×C3
socleC22×C3C3×C22⋊C4
prime radicalC23×C3C3×D4
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4×C9 ◁ C22×C4×C9 ◁ G

165 conjugacy classes of subgroups; only the 87 normal subgroups are shown.

normal subgroups only

This group has 165 conjugacy classes of subgroups — too many to draw. Only its 87 normal subgroups are shown.

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

Full subgroup data →

Presentation

minimal degreeμ(G) = 21
transitive degreeμt(G) = 144

A minimal faithful permutation representation — 2 generators on 21 points:

(1,2,3,4,5,6,7,8,9)(10,11,12,13)(14,15)(16,18)(17,20)(19,21);(15,18,20,19)

Conjugacy classes & character table

252 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofD9×#339, #11783195, #11783856, …
maximal subgroup ofC2×C9×#339, C9×#1733, C4×C9×#104, …
maximal normal subgroup ofC2×C9×#339, C9×#1733, C4×C9×#104, …
maximal quotient ofC9×#1276, C9×#1278, C9×#1279, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(576, 145);