Finite Group Databasebeta
Cayley diagram

C2×#1905 #20997

order256
nilpotency class3
isoclinismisoclinic class of #1902
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1905

Subgroups

subgroupG/H
center, socleC22#386
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

839 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 34
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 34 points:

(1,2);(3,4,8,12,9,14,7,13)(5,15,18,25,19,28,17,10)(6,20,22,11,23,26,21,27)(16,24,31,33,32,34,30,29);(3,5)(4,10,14,25)(6,16)(7,17)(8,18)(9,19)(11,24,27,34)(12,15,13,28)(20,29,26,33)(21,30)(22,31)(23,32);(3,6,9,23)(4,11,14,27)(5,16,19,32)(7,22,8,21)(10,24,25,34)(12,20,13,26)(15,29,28,33)(17,31,18,30)

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×#1905, #355850, #356621, …
maximal normal subgroup ofC4×#1905, #355850, #356621, …
maximal quotient ofC2×#9088, C2×#9090, #196082, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13985);