Finite Group Databasebeta

#72286415

order1024
nilpotency class3
automorphism?
homologyAbelianization (H1) = C8×C16 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C8#322
commutatorC8C8×C16
Frattini, cosocleC2×#1397C22
socleC22#7332
prime radicalC23#1398
LCSG ▷ C8 ▷ C2 ▷ C1
UCSC1 ◁ C2×C8 ◁ C2×#1397 ◁ G
LECSG ▷ C2×#1397 ▷ C2×C16 ▷ C8 ▷ C4 ▷ C2 ▷ C1

195 conjugacy classes of subgroups; only the 125 normal subgroups are shown.

normal subgroups only

This group has 195 conjugacy classes of subgroups — too many to draw. Only its 125 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) = 68
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 2 generators on 68 points:

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

Polycyclic presentation:

2^10|a^2=c,b^2=cdei,c^2=f,d^2=ij,e^2=g,f^2=h,g^2=i,h^2=i,i^2=j,b^a=bd,c^b=cij,d^a=dj,d^b=dj,e^a=eij,e^b=eij,e^c=ej,f^b=fj,g^a=gj,g^b=gj

Conjugacy classes & character table

184 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72286426, #72323180, #72323181
maximal normal subgroup of#72286426, #72323180, #72323181

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