Finite Group Databasebeta
Cayley diagram

C2×#2727 #52151

order256
nilpotency class2
isoclinismisoclinic class of #2668
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2727

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC23×D4C22
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1307 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);(7,8,11,9)(10,13,14,12)(16,19)(20,21);(4,6)(8,9)(10,14)(15,16,18,19)(17,21,22,20);(3,4)(5,6)(7,9,11,8)(10,13,14,12)(15,16)(17,20)(18,19)(21,22);(7,10,11,14)(8,12,9,13)(15,17,18,22)(16,20,19,21)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97541, C2×#7740, C2×#7765, …
maximal normal subgroup of#97541, C2×#7740, C2×#7765, …
maximal quotient ofC2×#14387, C2×#14396, C2×#14441, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 45139);