Finite Group Databasebeta

C2×H(3,𝔽3)×C22⋊Q8 #13154552

order1728
nilpotency class2
isoclinismisoclinic class of H(3,𝔽3)×#120
automorphism?
homologyAbelianization (H1) = C24×C32 · Schur multiplier (H2) = C25×C32

Aliases

direct productC2×H(3,𝔽3)×C22⋊Q8
unambiguous semidirect product(C2×C32×C22⋊Q8)⋊C3

Subgroups

subgroupG/H
center, socleC23×C3C23×C32
commutator, Frattini, cosocleC22×C3C24×C32
prime radicalC24×H(3,𝔽3)C22
LCSG ▷ C22×C3 ▷ C1
UCSC1 ◁ C23×C3 ◁ G

1771 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 23
transitive degreeμt(G) = 288

A minimal faithful permutation representation — 4 generators on 23 points:

(1,2)(15,16,18)(17,20,22)(19,23,21);(4,6)(7,8,10,12)(9,13,14,11)(16,19,20)(18,22,23);(7,9,10,14)(8,11,12,13);(3,4)(5,6)(7,8)(9,11)(10,12)(13,14)

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, 20615);