Finite Group Databasebeta
Cayley diagram

#12990

order256
nilpotency class4
isoclinismisoclinic class of #2184
automorphismAut(G) = C2×#72237167 (order 4096) · Inn(G) = C2×D8 · Out(G) = C2×#525
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C2×D8
commutatorC2×C8C22×C4
Frattini, cosocleC22×C8C23
socleC22C2×#102
prime radical#3050C2
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ C23×C8 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

259 conjugacy classes of subgroups; only the 77 normal subgroups are shown.

normal subgroups only

This group has 259 conjugacy classes of subgroups — too many to draw. Only its 77 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) = 36
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 3 generators on 36 points:

(1,2)(3,4)(5,6,9,14,10,15,24,32,11,16,25,33,23,31,8,13)(7,17,19,29,20,30,18,34,21,35,22,12,26,27,36,28);(5,7,10,26,11,21,23,20)(6,12,15,34,16,29,31,28)(8,22,9,18,24,19,25,36)(13,30,14,17,32,27,33,35);(2,4)

Polycyclic presentation:

2^8|a^2=f,b^2=dfg,d^2=gh,f^2=g,g^2=h,b^a=bd,c^a=ce,d^b=dg,f^b=fg,g^b=gh

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#131272, #131279, #131330, …
maximal normal subgroup of#131272, #131279, #131330, …
maximal quotient of#136603, #136604, #136605, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 5978);