Finite Group Databasebeta
Cayley diagram

C2×#2155 #33403

order256
nilpotency class4
isoclinismisoclinic class of #365
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#2155

Subgroups

subgroupG/H
centerC2×C4#106
commutatorC8C23×C4
Frattini, cosocleC2×C8C24
socleC22C2×#106
prime radicalC24SD16
LCSG ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ C23×C8 ◁ G
LECSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1

329 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)(5,14,17,28)(6,11)(7,20)(8,23)(9,13)(10,16,25,30)(12,21)(15,27,18,32)(19,26)(22,33)(24,29,34,31);(3,5,7,16,8,18,21,31,9,17,22,30,6,15,19,29)(4,10,12,14,11,24,20,27,13,25,26,28,23,34,33,32);(3,6,9,8)(4,11,13,23)(5,15,17,18)(7,19,22,21)(10,24,25,34)(12,20,26,33)(14,27,28,32)(16,29,30,31)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#147082, #147083, #147085, …
maximal normal subgroup of#147082, #147083, #147085, …
maximal quotient ofC2×#11999, C2×#12000, #483322, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 26391);