Finite Group DatabasebetaFinite Group Databasebeta| order | 1280 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
| unambiguous semidirect product | D5⋊#1917 |
| Sylow | C5 ⋊ C2×#1917 |
1070 conjugacy classes of subgroups.
| transitive degree | μt(G) = 640 |
Polycyclic presentation:
2^8,5|a^2=g,b^2=g,c^2=e,g^2=h,b^a=be,c^a=cf,i^a=i^3,c^b=ch,i^b=i^2,i^d=i^4,i^g=i^4128 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 1105369);