Finite Group Databasebeta
Cayley diagram

C2×#2421 #34704

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2421

Subgroups

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

1351 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);(7,8,11,14)(9,13,10,12)(15,16,18,20)(17,21,22,19);(4,6)(7,9,11,10)(8,12,14,13)(15,16)(17,19)(18,20)(21,22);(3,4)(5,6)(7,8)(9,12)(10,13)(11,14);(7,10,11,9)(8,13,14,12)(15,17,18,22)(16,19,20,21)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97378, #97609, #98519, …
maximal normal subgroup of#97378, #97609, #98519, …
maximal quotient ofC2×#13875, C2×#13931, C2×#13969, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27692);