Finite Group Databasebeta

D5⋊#1780 #13034118

order1280
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C28

Aliases

unambiguous semidirect productD5⋊#1780

Splittings

SylowC5 ⋊ C2×#1780

Subgroups

subgroupG/H
centerC22×C4C22×AGL(1,𝔽5)
commutator, socleC23×C5C23×C4
FrattiniC23C23×AGL(1,𝔽5)
FittingC22×C5×#41C4
prime radicalC22×D5×#41C2
cosocleC22×Dic5C24
hypercenterC22×#41AGL(1,𝔽5)
hypocenterC5C2×#1780
LCSG ▷ C23×C5 ▷ C5
UCSC1 ◁ C22×C4 ◁ C22×#41

4070 conjugacy classes of subgroups; only the 416 normal subgroups are shown.

normal subgroups only

This group has 4070 conjugacy classes of subgroups — too many to draw. Only its 416 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 320

Polycyclic presentation:

2^8,5|a^2=g,g^2=h,b^a=be,c^a=cf,i^a=i^2,c^b=ch,i^d=i^4,i^g=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, 1104386);