Finite Group Databasebeta
Cayley diagram

C2×#1286 #7955

order256
nilpotency class3
isoclinismisoclinic class of #1284
automorphismAut(G) order 16384
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C23×C4

Aliases

direct productC2×#1286

Subgroups

subgroupG/H
center, socleC23#95
commutatorC2×C4C2×C42
Frattini, cosocleC2×C42C23
prime radicalC24C22⋊C4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C2×C42 ▷ C22 ▷ C1

351 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 3 generators on 26 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×#1286, #105395, #105536, …
maximal normal subgroup ofC4×#1286, #105395, #105536, …
maximal quotient ofC2×#7018, #94998, #95004, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 943);