Finite Group Databasebeta
Cayley diagram

C22×#124 #3436

order128
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 1572864
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28×C4

Aliases

direct productC22×#124

Subgroups

subgroupG/H
center, socleC24C23
commutator, Frattini, cosocleC22C25
prime radicalC23×D4C2
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C22 ▷ C1

940 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 5 generators on 16 points:

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

Conjugacy classes & character table

56 conjugacy classes — view the full character table.

Relationships

derived subgroup of#72227934, #72227935, #72227938, …
Frattini subgroup of#93115, #93120, #93124, …
Fitting subgroup ofA4×#124, #11711021, #11711505, …
maximal subgroup of#8305, #8334, #8544, …
maximal normal subgroup of#8305, #8334, #8544, …
maximal quotient ofC22×#382, C22×#388, C22×#390, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 2168);