Finite Group Databasebeta
Cayley diagram

#17902

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 8192
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C8C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC22C2×C4×D4
prime radicalC22×D4C2×C4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C8 ◁ C2×C4×C8 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

353 conjugacy classes of subgroups; only the 165 normal subgroups are shown.

normal subgroups only

This group has 353 conjugacy classes of subgroups — too many to draw. Only its 165 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) = 24
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 24 points:

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

Polycyclic presentation:

2^8|a^2=f,c^2=fg,e^2=g,f^2=h,b^a=be,d^a=dh,e^a=eg,e^b=eg

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#136650, #136652, #136653, …
maximal normal subgroup of#136650, #136652, #136653, …
maximal quotient of#182492, #182529, #183455, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10890);