Finite Group Databasebeta
Cayley diagram

#64761

order320
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

SylowC5 ⋊ #354

Subgroups

subgroupG/H
centerC2#3966
commutatorC2×C4×C5C2×C4
FrattiniC2×D4C2×D5
FittingC5×#124C2
socleC2×C5#99
prime radical, cosocleC2×C5×D4C22
hypercenter#124D5
hypocenterC5#354
LCSG ▷ C2×C4×C5 ▷ C22×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2 ◁ C22 ◁ C2×D4 ◁ #124

70 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)(6,8,10,15)(7,11,13,20)(9,18,19,16)(12,21,17,14);(2,3)(4,5)(6,7)(8,14,15,21)(9,17,19,12)(10,13)(11,16)(18,20)

Polycyclic presentation:

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

Conjugacy classes & character table

41 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10597951, #10598038, #10598039, …
maximal normal subgroup of#10597951, #10598038, #10598039, …
maximal quotient of#10598123, #10598132, #10598134, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 99);