Finite Group Databasebeta

3−1+2×#384 #13144912

order1728
nilpotency class2
isoclinismisoclinic class of H(3,𝔽3)×#120
automorphism?
homologyAbelianization (H1) = C22×C32×C4 · Schur multiplier (H2) = C22×C4

Aliases

direct product3−1+2×#384

Subgroups

subgroupG/H
center, Frattini, socle, cosocleC23×C3C23×C32
commutatorC22×C3C22×C32×C4
prime radicalC23×C32C23×C3
LCSG ▷ C22×C3 ▷ C1
UCSC1 ◁ C23×C3 ◁ G

744 conjugacy classes of subgroups; only the 455 normal subgroups are shown.

normal subgroups only

This group has 744 conjugacy classes of subgroups — too many to draw. Only its 455 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) = 576

A minimal faithful permutation representation — 3 generators on 21 points:

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

Conjugacy classes & character table

308 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1728, 10975);