Finite Group Databasebeta
Cayley diagram

C22×#556 #62706

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

Aliases

direct productC22×#556

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC22C26
prime radicalC23×D4C22
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C22 ▷ C1

3923 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)(7,9)(8,11)(10,12)(15,19)(17,20);(5,7,10,8)(6,11,12,9)(13,14,16,18)(15,17,19,20);(5,8,10,7)(6,11,12,9)(13,15)(14,17)(16,19)(18,20);(5,9,10,11)(6,7,12,8)

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofA4×#556
maximal subgroup ofC2×#8365, #185482, C2×#8368, …
maximal normal subgroup ofC2×#8365, #185482, C2×#8368, …
maximal quotient ofC22×#2354, C22×#2356, C22×#2355, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 55694);