Finite Group Databasebeta
Cayley diagram

C2×#2598 #34857

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C29

Aliases

direct productC2×#2598

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC2×#392C2
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1751 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);(4,6)(16,19)(17,21);(8,11)(12,14)(15,16,18,19)(17,20,21,22);(3,4)(5,6)(7,8)(9,12)(10,11)(13,14)(15,16)(17,20)(18,19)(21,22);(7,9,10,13)(8,12,11,14)(15,17,18,21)(16,20,19,22)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#115300, #129870, #129878, …
maximal normal subgroup of#115300, #129870, #129878, …
maximal quotient ofC2×#13938, C2×#13959, C2×#14064, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27845);