Finite Group Databasebeta

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#72253396

order3840
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

SylowC5 ⋊ (#1020⋊C2)⋊C4

Subgroups

subgroupG/H
center, hypercenterC1G
commutatorC5×#120⋊C3C2×C4
FrattiniC23AGL(1,𝔽5)×S4
FittingC5×#120C4×D3
socleC22×C5(C2×S4)⋊C4
prime radicalD5×#1020⋊C2C2
cosocleD5×#120⋊C3C22
hypocenterC5×C22⋊A4C22⋊C4
LCSG ▷ C5×#120⋊C3 ▷ C5×C22⋊A4
UCSC1

744 conjugacy classes of subgroups; only the 33 normal subgroups are shown.

normal subgroups only

This group has 744 conjugacy classes of subgroups — too many to draw. Only its 33 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) = 21
transitive degreeμt(G) = 80

A minimal faithful permutation representation — 2 generators on 21 points:

(1,2,4,3)(6,21,18,10,20,8)(7,12,15)(9,11,16,19,14,17);(2,3,4,5)(7,11,13,21)(8,16,18,17)(10,19)(12,14,15,20)

Polycyclic presentation:

2^4,3,5,2^4|a^2=c,b^2=cd,b^a=bd,e^a=e^2,f^a=f^3,f^b=f^3,f^c=f^4,g^a=ghi,g^b=gj,g^c=gi,g^d=gi,g^e=h,h^a=hj,h^b=hi,h^c=hij,h^d=hij,h^e=gh,i^a=j,i^e=ij,j^a=i,j^e=i

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72253399, AGL(1,𝔽5)×#4625⋊C2
maximal normal subgroup ofAGL(1,𝔽5)×#4625⋊C2

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