Finite Group Databasebeta

#72332876

order1024
nilpotency class2
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28×C42

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, commutator, Frattini, socle, cosocleC25C25
prime radicalC2×#15947C2
LCSG ▷ C25 ▷ C1
UCSC1 ◁ C25 ◁ G
LECSG ▷ C25 ▷ C1

At least 7874 conjugacy classes of subgroups; only the 1101 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:

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

Polycyclic presentation:

2^10|a^2=i,c^2=i,d^2=hi,b^a=bj,c^a=ci,d^a=dg,d^b=df,d^c=dh,e^a=ei,e^c=efi,e^d=efg

Conjugacy classes & character table

136 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72333225, #72333263, #72333331
maximal normal subgroup of#72333225, #72333263, #72333331

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