Finite Group Databasebeta
Cayley diagram

C2×#2591 #34850

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C27×C4

Aliases

direct productC2×#2591

Subgroups

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

1719 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)(9,11)(10,13)(12,14)(16,19)(17,21);(8,9)(12,13)(15,16,18,19)(17,20,21,22);(3,4)(5,6)(7,9,11,8)(10,13,14,12);(7,10)(8,12)(9,13)(11,14)(15,17)(16,20)(18,21)(19,22)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#111588, #112584, #115177, …
maximal normal subgroup of#111588, #112584, #115177, …
maximal quotient ofC2×#13923, C2×#13966, C2×#14019, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27838);