Finite Group Databasebeta
Cayley diagram

C22×#553 #62705

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

Aliases

direct productC22×#553

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC22C26
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C22 ▷ C1

4399 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 128

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

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

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofA4×#553
maximal subgroup ofC2×#8362, #185481, C2×#8373, …
maximal normal subgroup ofC2×#8362, #185481, C2×#8373, …
maximal quotient ofC22×#2352, C22×#2353, C22×#2345, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 55693);