Finite Group Databasebeta
Cayley diagram

C22×#551 #62703

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphism?
homologyAbelianization (H1) = C26 · Schur multiplier (H2) = C213

Aliases

direct productC22×#551

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC22C26
prime radicalC22×#120C2
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C22 ▷ C1

4763 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 6 generators on 20 points:

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

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofA4×#551
maximal subgroup of#188041, #188046, #188091, …
maximal normal subgroup of#188041, #188046, #188091, …
maximal quotient ofC22×#2342, C22×#2343, C22×#2353, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 55691);