Finite Group Databasebeta

D5128 #23779643

order10256
automorphismAut(G) order 13127680
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD5128

Splittings

FittingC8×C641 ⋊ C2
SylowC641 ⋊ D8

Subgroups

subgroupG/H
centerC2D2564
commutator, cosocleC4×C641C22
FrattiniC4C2×D641
FittingC8×C641C2
socleC2×C641D4
hypercenterC8D641
hypocenterC641D8
LCSG ▷ C4×C641 ▷ C2×C641 ▷ C641
UCSC1 ◁ C2 ◁ C4 ◁ C8

22 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2^4,641|c^2=d,b^a=bc,c^a=cd,e^a=e^640,c^b=cd,e^b=e^640

Conjugacy classes & character table

2567 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#35206291, D10256, #35206293, …
maximal normal subgroup of#35206291, D10256, #35206293, …
maximal quotient of#35206272, #35206284, D10256, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(10256, 26);