Finite Group Databasebeta
Cayley diagram

C2×#2438 #34731

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 524288
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2438

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC25C23
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1503 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);(7,8)(9,13)(10,12)(11,14)(15,16,19,22)(17,21,18,20);(4,6)(7,8,10,12)(9,11,14,13)(15,17,19,18)(16,20,22,21);(3,4)(5,6)(7,8)(9,11)(10,12)(13,14)(15,18,19,17)(16,21,22,20);(7,9)(8,11)(10,14)(12,13)(15,16)(17,20)(18,21)(19,22)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#206934, #215634, #370499, …
maximal normal subgroup of#206934, #215634, #370499, …
maximal quotient ofC2×#13878, C2×#13962, C2×#13980, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27719);