Finite Group Databasebeta
Cayley diagram

#17981

order256
nilpotency class3
isoclinismisoclinic class of #3186
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC22C2×C4×D4
prime radical#3169C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C2×C4×C8 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

363 conjugacy classes of subgroups; only the 155 normal subgroups are shown.

normal subgroups only

This group has 363 conjugacy classes of subgroups — too many to draw. Only its 155 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) = 128

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#136322, #137477, #137479, …
maximal normal subgroup of#136322, #137477, #137479, …
maximal quotient of#182477, #183480, #183912, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10969);