Finite Group Databasebeta
Cayley diagram

#65384

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

Aliases

No aliases for this group.

Splittings

FittingC5×C4⋊Q8 ⋊ C2
SylowC5 ⋊ #456

Subgroups

subgroupG/H
centerC2#4083
commutator, cosocleC2×C4×C5C23
FrattiniC2×C4C22×D5
FittingC5×C4⋊Q8C2
socleC2×C5#120
prime radical#4147C2
hypercenterC4⋊Q8D5
hypocenterC5#456
LCSG ▷ C2×C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2 ◁ C2×C4 ◁ C4⋊Q8

142 conjugacy classes of subgroups.

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

Polycyclic presentation:

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

Conjugacy classes & character table

44 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10597954, #10598041, #10599960, …
maximal normal subgroup of#10597954, #10598041, #10599960, …
maximal quotient of#10600366, #10600385, #10600386, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 722);