Finite Group Databasebeta
Cayley diagram

C2×#488 #3130

order128
nilpotency class3
isoclinismisoclinic class of #465
automorphismAut(G) order 16384
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C23×C4

Aliases

direct productC2×#488

Subgroups

subgroupG/H
center, socleC23C2×D4
commutator, Frattini, cosocleC2×C4C24
prime radicalC22×D4C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×C42 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

206 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 26 points:

(1,2);(3,4)(5,8)(6,7)(9,10)(11,12)(13,21)(14,17)(15,25)(16,20)(18,23)(19,22)(24,26);(4,7)(8,10)(11,13,22,24,16,23,15,14)(12,17,25,18,20,26,19,21);(3,5,6,9)(4,8,7,10)(11,14,15,23,16,24,22,13)(12,18,19,17,20,21,25,26)

Conjugacy classes & character table

44 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#9789, #9790, C2×#1414, …
maximal normal subgroup of#9789, #9790, C2×#1414, …
maximal quotient ofC2×#1835, C2×#1933, C2×#1934, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 1862);