Finite Group Databasebeta
Cayley diagram

#3951

order160
isoclinismisoclinic class of #677
automorphismAut(G) = C2×AGL(1,𝔽5)×AGL(1,ℤ/8) (order 1280) · Inn(G) = D20 · Out(G) = C23×C4
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C1

Aliases

No aliases for this group.

Splittings

SylowC5 ⋊ #108

Subgroups

subgroupG/H
centerC4D20
commutatorC4×C5C2×C4
FrattiniC2×C4C2×D5
FittingC2×C5×C8C2
socleC2×C5C4⋊C4
prime radicalC22×C5Q8
cosocleC2×C4×C5C22
hypercenterC2×C8D5
hypocenterC5#108
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C4 ◁ C2×C4 ◁ C2×C8

30 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)(6,8,10,17,11,18,9,16)(7,12,13,15,14,20,19,21);(2,3)(4,5)(6,7,9,13,11,14,10,19)(8,15,16,20,18,21,17,12)

Polycyclic presentation:

2^5,5|a^2=c,b^2=d,c^2=e,d^2=e,b^a=bd,d^a=de,f^a=f^4

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#64707, #64713, #64726, …
maximal normal subgroup of#64707, #64713, #64726, …
maximal quotient of#64677, #64678, #64772, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(160, 26);