Finite Group Databasebeta
Cayley diagram

C2×#1729 #20334

order256
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 524288
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1729

Subgroups

subgroupG/H
centerC23×C4C23
commutatorC22C22×C42
Frattini, cosocleC22×C4C24
socleC24C22×C4
prime radicalC25C2×C4
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

1175 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 26 points:

(1,2);(3,4)(5,6)(11,12,14,17,15,18,21,24)(13,16,20,23,19,22,25,26);(4,6)(7,8,9,10)(11,13)(12,16)(14,20)(15,19)(17,23)(18,22)(21,25)(24,26);(13,19)(16,22)(20,25)(23,26)

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#123429, #123436, #123437, …
maximal normal subgroup of#123429, #123436, #123437, …
maximal quotient ofC2×#7848, C2×#7849, C2×#7850, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13322);