Finite Group Databasebeta
Cayley diagram

C2×#2637 #34601

order256
nilpotency class2
isoclinismisoclinic class of #2613
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2637

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC25C23
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1241 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 22 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#115192, #133122, #133132, …
maximal normal subgroup of#115192, #133122, #133132, …
maximal quotient ofC2×#14268, C2×#14270, C2×#14291, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27589);