Finite Group Databasebeta

#72257933

order1024
nilpotency class3
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23#2403
commutatorC2×C42C23×C4
Frattini, cosocleC22×C42C24
prime radicalC22×#127D4
LCSG ▷ C2×C42 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C22×C42 ▷ C22 ▷ C1

3431 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 28
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 28 points:

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

Polycyclic presentation:

2^10|b^2=f,c^2=h,d^2=g,e^2=i,g^2=j,c^a=ch,c^b=ch,d^b=dg,d^c=de,e^a=ei,g^b=gj,g^c=gi,h^d=hi

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72257944, #72257962, #72264448, …
maximal normal subgroup of#72257944, #72257962, #72264448, …
maximal quotient of#72265368, #72308333

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