Finite Group Databasebeta

#72265087

order1024
nilpotency class4
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22#9041
commutatorC2×#97C22×C4
Frattini, cosocleC22×#97C23
prime radical#499940C2
LCSG ▷ C2×#97 ▷ C22×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ C22×#97 ◁ G
LECSG ▷ C22×#97 ▷ C22×C4 ▷ C2 ▷ C1

1280 conjugacy classes of subgroups; only the 101 normal subgroups are shown.

normal subgroups only

This group has 1280 conjugacy classes of subgroups — too many to draw. Only its 101 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) = 40
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 3 generators on 40 points:

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

Polycyclic presentation:

2^10|b^2=j,c^2=f,d^2=h,e^2=ij,i^2=j,b^a=be,c^b=cd,d^a=dg,d^b=dh,d^c=dj,e^a=ei,e^b=ei,e^c=egj,e^d=ej,f^b=fhj,g^b=gj,i^a=ij,i^b=ij

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72265103, #72265517, #72265534, …
maximal normal subgroup of#72265103, #72265517, #72265534, …

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, 2, F.10);;
gap> SetPower(coll, 3, F.6);;
gap> SetPower(coll, 4, F.8);;
gap> SetPower(coll, 5, F.9*F.10);;
gap> SetPower(coll, 9, F.10);;
gap> SetConjugate(coll, 2, 1, F.2*F.5);;
gap> SetConjugate(coll, 3, 2, F.3*F.4);;
gap> SetConjugate(coll, 4, 1, F.4*F.7);;
gap> SetConjugate(coll, 4, 2, F.4*F.8);;
gap> SetConjugate(coll, 4, 3, F.4*F.10);;
gap> SetConjugate(coll, 5, 1, F.5*F.9);;
gap> SetConjugate(coll, 5, 2, F.5*F.9);;
gap> SetConjugate(coll, 5, 3, F.5*F.7*F.10);;
gap> SetConjugate(coll, 5, 4, F.5*F.10);;
gap> SetConjugate(coll, 6, 2, F.6*F.8*F.10);;
gap> SetConjugate(coll, 7, 2, F.7*F.10);;
gap> SetConjugate(coll, 9, 1, F.9*F.10);;
gap> SetConjugate(coll, 9, 2, F.9*F.10);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);