Finite Group Databasebeta
Cayley diagram

#17980

order256
nilpotency class3
isoclinismisoclinic class of #3186
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC22C2×C4×D4
prime radicalC23C4×D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C2×C4×C8 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

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

normal subgroups only

This group has 295 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) = 32
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 32 points:

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

Polycyclic presentation:

2^8|a^2=f,b^2=g,c^2=f,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#136323, #137478, #137480, …
maximal normal subgroup of#136323, #137478, #137480, …
maximal quotient of#182478, #183480, #183911, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10968);