Finite Group Databasebeta
Cayley diagram

#13721

order256
nilpotency class5
isoclinismisoclinic class of #13694
automorphismAut(G) order 8192
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×D16
commutator, Frattini, cosocleC2×C16C23
prime radicalC2×D16C22
LCSG ▷ C2×C16 ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C42 ◁ C4×C8 ◁ C4×C16 ◁ G
LECSG ▷ C2×C16 ▷ C8 ▷ C4 ▷ C2 ▷ C1

90 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 72
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 3 generators on 72 points:

(1,2)(3,6)(4,5)(7,8)(9,10)(11,25)(12,18)(13,35)(14,39)(15,41)(16,44)(17,24)(19,30)(20,26)(21,38)(22,36)(23,42)(27,49)(28,60)(29,50)(31,55)(32,54)(33,66)(34,48)(37,52)(40,51)(43,70)(45,64)(46,63)(47,65)(53,69)(56,61)(57,68)(58,67)(59,72)(62,71);(2,5)(6,8)(9,11,26,32,15,28,57,65,42,61,40,59,69,64,38,34,17,30,14,27,43,62,37,33,16,29,58,63,36,31,13,12)(10,18,35,55,22,46,67,50,44,66,52,71,70,49,39,19,24,48,21,45,53,72,51,56,23,47,68,60,41,54,20,25);(1,3,4,7)(2,6,5,8)(9,12,13,31,36,63,58,29,16,33,37,62,43,27,14,30,17,34,38,64,69,59,40,61,42,65,57,28,15,32,26,11)(10,19,20,49,41,71,68,66,23,50,51,46,53,55,21,18,24,25,39,54,70,60,52,47,44,56,67,72,22,45,35,48)

Polycyclic presentation:

2^8|b^2=eh,c^2=d,d^2=fg,e^2=f,f^2=gh,g^2=h,b^a=bd,c^a=ce,d^a=df,e^a=efg,f^a=fg,g^a=gh

Conjugacy classes & character table

70 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#151578, #151579, C2×#13721, …
maximal normal subgroup of#151578, #151579, C2×#13721, …
maximal quotient of#152385, #152830, #152831, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 6709);