Finite Group Databasebeta

D5⋊#2117 #13043177

order1280
automorphism?
homologyAbelianization (H1) = C23×C8 · Schur multiplier (H2) = C26

Aliases

unambiguous semidirect productD5⋊#2117

Splittings

SylowC5 ⋊ C2×#2117

Subgroups

subgroupG/H
centerC8C2×C22⋊AGL(1,𝔽5)
commutatorC4×C5C23×C8
FrattiniC2×C4C23×AGL(1,𝔽5)
FittingC2×C5×#131C4
socleC2×C5C22×C22⋊C8
prime radicalC2×D5×#41C4
cosocleC2×#168C24
hypercenterC2×#131AGL(1,𝔽5)
hypocenterC5C2×#2117
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C8 ◁ C22×C8 ◁ C2×#131

1154 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 160

Polycyclic presentation:

2^8,5|a^2=f,e^2=h,f^2=g,g^2=h,b^a=be,c^a=ch,i^a=i^2,e^b=eh,f^b=fh,i^d=i^4,i^f=i^4

Conjugacy classes & character table

128 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 1113445);