Finite Group Databasebeta

#72328686

order1024
nilpotency class2
automorphism?
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C210×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, socle, cosocleC25C25
commutatorC24C24×C4
prime radicalC2×#14715C2
LCSG ▷ C24 ▷ C1
UCSC1 ◁ C25 ◁ G
LECSG ▷ C25 ▷ C1

At least 7923 conjugacy classes of subgroups; only the 1373 normal subgroups are shown.

Full subgroup data →

Presentation

minimal degreeμ(G) = 28
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 5 generators on 28 points:

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

Polycyclic presentation:

2^10|a^2=j,b^2=i,c^2=j,d^2=i,e^2=gj,b^a=bg,c^b=cf,d^a=dh,d^c=dij,e^a=efij,e^b=egij,e^c=eg,e^d=egij

Conjugacy classes & character table

148 conjugacy classes — view the full character table.

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