Finite Group Databasebeta
Cayley diagram

C2×#341 #1737

order128
nilpotency class3
isoclinismisoclinic class of D8
automorphismAut(G) order 8192
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C24

Aliases

direct productC2×#341

Subgroups

subgroupG/H
centerC22×C4D4
commutatorC4C2×C42
Frattini, cosocleC22×C4C23
socleC23C4⋊C4
prime radicalC24Q8
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

196 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 3 generators on 22 points:

(1,2);(3,4)(5,6)(7,8,10,15,12,16,11,14)(9,17,18,13,20,21,19,22);(4,6)(7,9,11,19,12,20,10,18)(8,13,15,21,16,22,14,17)

Conjugacy classes & character table

56 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#7259, #7261, #7263, …
maximal normal subgroup of#7259, #7261, #7263, …
maximal quotient ofC2×#1277, #7872, #7874, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 469);