Finite Group Databasebeta
Cayley diagram

C2×#563 #3528

order128
nilpotency class2
isoclinismisoclinic class of #560
automorphismAut(G) order 65536
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#563

Subgroups

subgroupG/H
center, socleC23C24
commutator, Frattini, cosocleC22C25
prime radicalC22×D4C22
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ G
LECSG ▷ C22 ▷ C1

512 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 5 generators on 26 points:

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

Conjugacy classes & character table

38 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#8507, #12764, #12775, …
maximal normal subgroup of#8507, #12764, #12775, …
maximal quotient ofC2×#2376, C2×#2378, C2×#2379, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 2260);