Finite Group Databasebeta
Cayley diagram

C2×#2639 #34563

order256
nilpotency class2
isoclinismisoclinic class of #2613
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C27×C4

Aliases

direct productC2×#2639

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC22×#121C2
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1663 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);(3,4,5,6)(7,8,11,12)(9,10,13,14)(15,16)(17,20)(18,21)(19,22);(3,4,5,6)(8,12)(9,13)(15,17)(16,19)(18,22)(20,21);(3,4)(5,6)(7,9)(8,10)(11,13)(12,14)(15,17)(16,20)(18,22)(19,21);(7,10)(8,13)(9,12)(11,14)(15,16)(17,19)(18,21)(20,22)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#111267, #112269, #112270, …
maximal normal subgroup of#111267, #112269, #112270, …
maximal quotient ofC2×#14259, C2×#14271, C2×#14281, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27551);