Finite Group Databasebeta
Cayley diagram

#64683

order320
isoclinismisoclinic class of #677
automorphism?
homologyAbelianization (H1) = C2×C8 · Schur multiplier (H2) = C1

Aliases

No aliases for this group.

Splittings

SylowC5 ⋊ #364

Subgroups

subgroupG/H
centerC8D20
commutatorC4×C5C2×C8
FrattiniC2×C8C2×D5
FittingC4×C5×C8C2
socleC2×C5C4⋊C8
prime radicalC22×C5M16
cosocleC2×C5×C8C22
hypercenterC4×C8D5
hypocenterC5#364
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C8 ◁ C2×C8 ◁ C4×C8

46 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 21
transitive degreeμt(G) = 80

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

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

Polycyclic presentation:

2^6,5|a^2=c,b^2=d,c^2=e,d^2=f,e^2=f,b^a=bd,d^a=df,g^a=g^4

Conjugacy classes & character table

92 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10597932, #10597934, #10597993, …
maximal normal subgroup of#10597932, #10597934, #10597993, …
maximal quotient of#10597930, #10597931, #10598149, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 21);