Finite Group Databasebeta
Cayley diagram

#20420

order256
nilpotency class3
isoclinismisoclinic class of AGL(1,ℤ/8)
automorphismAut(G) order 16384
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C25×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C8C2×D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
socleC22C2×C4×D4
prime radicalC22×#41C22
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C8 ◁ C23×C8 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

737 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 36
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 36 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146414, #146415, #146416, …
maximal normal subgroup of#146414, #146415, #146416, …
maximal quotient of#182292, #182296, #182299, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13408);