Finite Group Databasebeta
Cayley diagram

C22×#123 #3434

order128
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 786432
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C29

Aliases

direct productC22×#123

Subgroups

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

984 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);(6,8)(10,13)(11,15);(9,10)(11,14)(12,13)(15,16);(5,6)(7,8)(9,11,12,15)(10,14,13,16)

Conjugacy classes & character table

56 conjugacy classes — view the full character table.

Relationships

derived subgroup of#72227720, #72227721, #72227725, …
Frattini subgroup of#93101, #93102, #93119, …
Fitting subgroup ofA4×#123, #11711502, #11713203, …
maximal subgroup of#8304, #8543, #8548, …
maximal normal subgroup of#8304, #8543, #8548, …
maximal quotient ofC22×#381, C22×#385, C22×#386, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 2166);