Finite Group Databasebeta
Cayley diagram

C2×#2370 #34144

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2370

Subgroups

subgroupG/H
center, socle, prime radicalC24C24
commutatorC22C24×C4
Frattini, cosocleC23C25
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1255 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 256

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

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

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97574, #97590, #106168, …
maximal normal subgroup of#97574, #97590, #106168, …
maximal quotient ofC2×#13804, C2×#13818, C2×#13819, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27132);