Finite Group Databasebeta
Cayley diagram

#65489

order320
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

SylowC5 ⋊ #471

Subgroups

subgroupG/H
centerC2#4085
commutator, cosocleC2×C4×C5C23
FrattiniC2×C4C22×D5
Fitting, prime radicalC5×AGL(1,ℤ/8)C2
socleC2×C5#121
hypercenterAGL(1,ℤ/8)D5
hypocenterC5#471
LCSG ▷ C2×C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2 ◁ C2×C4 ◁ AGL(1,ℤ/8)

104 conjugacy classes of subgroups; only the 37 normal subgroups are shown.

normal subgroups only

This group has 104 conjugacy classes of subgroups — too many to draw. Only its 37 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 — 3 generators on 21 points:

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

Polycyclic presentation:

2^6,5|a^2=f,d^2=f,e^2=f,b^a=be,c^a=cd,d^a=df,e^a=ef,g^a=g^4,c^b=ce,e^b=ef,d^c=df,e^c=ef

Conjugacy classes & character table

38 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10612011, #10612012, #10612019, …
maximal normal subgroup of#10612011, #10612012, #10612019, …
maximal quotient of#10601092, #10601095, #10601097, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 827);