Finite Group Databasebeta

#72343197

order1024
nilpotency class3
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C28

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4#2403
commutatorC23×C4C23×C4
Frattini, cosocleC22×C42C24
socleC22#13967
prime radical#6442721C2
LCSG ▷ C23×C4 ▷ C22 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×C42 ◁ G
LECSG ▷ C22×C42 ▷ C22 ▷ C1

4287 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 40
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 40 points:

(1,2)(3,5)(4,7)(6,8)(9,10,13,17,14,18,25,32)(11,15,20,27,21,28,34,38)(12,16,23,30,24,31,36,40)(19,26,33,37,22,29,35,39);(2,5)(3,8)(6,7)(9,11,14,21)(10,15,18,28)(12,22,24,19)(13,20,25,34)(16,29,31,26)(17,27,32,38)(23,35,36,33)(30,39,40,37);(9,12)(10,16)(11,19)(13,23)(14,24)(15,26)(17,30)(18,31)(20,33)(21,22)(25,36)(27,37)(28,29)(32,40)(34,35)(38,39);(19,22)(26,29)(33,35)(37,39)

Polycyclic presentation:

2^10|a^2=e,b^2=i,e^2=i,h^2=j,b^a=bh,c^b=ci,d^b=df,d^c=dg,f^c=fi,g^b=gi,h^a=hj,h^b=hj

Conjugacy classes & character table

124 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72343203, #72343222, #72343234
maximal normal subgroup of#72343203, #72343222, #72343234

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from its polycyclic presentation:

gap> F := FreeGroup(IsSyllableWordsFamily, "a", "b", "c", "d", "e", "f", "g", "h", "i", "j");;
gap> coll := SingleCollector(F, [2, 2, 2, 2, 2, 2, 2, 2, 2, 2]);;
gap> SetPower(coll, 1, F.5);;
gap> SetPower(coll, 2, F.9);;
gap> SetPower(coll, 5, F.9);;
gap> SetPower(coll, 8, F.10);;
gap> SetConjugate(coll, 2, 1, F.2*F.8);;
gap> SetConjugate(coll, 3, 2, F.3*F.9);;
gap> SetConjugate(coll, 4, 2, F.4*F.6);;
gap> SetConjugate(coll, 4, 3, F.4*F.7);;
gap> SetConjugate(coll, 6, 3, F.6*F.9);;
gap> SetConjugate(coll, 7, 2, F.7*F.9);;
gap> SetConjugate(coll, 8, 1, F.8*F.10);;
gap> SetConjugate(coll, 8, 2, F.8*F.10);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);