Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Fitting | C5×#419 ⋊ C2 |
| Sylow | C5 ⋊ #3328 |
374 conjugacy classes of subgroups.
| transitive degree | μt(G) = 320 |
Polycyclic presentation:
2^7,5|a^2=e,b^2=g,c^2=g,f^2=g,b^a=be,c^a=cf,d^a=dg,f^a=fg,c^b=cg,d^b=de,h^b=h^4,f^c=fg73 conjugacy classes — view the full character table.
| maximal subgroup of | D5×#3328, C2×#10610703, #12976253, … |
| maximal normal subgroup of | D5×#3328, C2×#10610703, #12976253, … |
| maximal quotient of | #12114937, #12115767, #12116568, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 12785);