Finite Group Databasebeta
Cayley diagram

C2×#2500 #34794

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C26×C42

Aliases

direct productC2×#2500

Subgroups

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

1611 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)(7,8)(9,13)(10,11)(12,14)(15,16,18,20)(17,21,22,19);(8,11)(12,13)(15,16)(17,19)(18,20)(21,22);(3,4,5,6)(7,8)(9,12)(10,11)(13,14);(7,9,10,14)(8,12,11,13)(15,17,18,22)(16,19,20,21)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#98508, #98562, #111904, …
maximal normal subgroup of#98508, #98562, #111904, …
maximal quotient ofC2×#13879, C2×#13939, C2×#14001, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27782);