Finite Group Databasebeta
Cayley diagram

#64856

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

Aliases

No aliases for this group.

Splittings

SylowC5 ⋊ #355

Subgroups

subgroupG/H
centerC2#3999
commutatorC2×C4×C5C2×C4
FrattiniC2×C4C2×AGL(1,𝔽5)
FittingC42×C5C4
socleC2×C5#99
prime radicalC2×D20C4
cosocleC2×Dic10C22
hypercenterC42AGL(1,𝔽5)
hypocenterC5#355
LCSG ▷ C2×C4×C5 ▷ C22×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2 ◁ C22 ◁ C2×C4 ◁ C42

64 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

29 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10598518, #10598519, #10598540, …
maximal normal subgroup of#10598518, #10598519, #10598540, …
maximal quotient of#10598499, #10598501, #10598686, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 194);