Finite Group Databasebeta
Cayley diagram

C2×#1819 #20686

order256
nilpotency class3
isoclinismisoclinic class of #1462
automorphismAut(G) order 262144
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1819

Subgroups

subgroupG/H
center, socleC23C2×C22⋊C4
commutatorC23C23×C4
Frattini, cosocleC24C24
prime radicalC26C22
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C26 ◁ G
LECSG ▷ C24 ▷ C2 ▷ C1

1559 conjugacy classes of subgroups; only the 247 normal subgroups are shown.

normal subgroups only

This group has 1559 conjugacy classes of subgroups — too many to draw. Only its 247 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 18 points:

(1,2);(3,4)(5,8)(6,7)(9,10)(11,12)(13,17,18,15)(14,16);(4,7)(8,10);(3,5,6,9)(4,8,7,10)(11,13)(12,15)(14,18)(16,17)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105809, #106133, #106544, …
maximal normal subgroup of#105809, #106133, #106544, …
maximal quotient ofC2×#8698, C2×#8700, #189688, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13674);