Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Fitting | C5×#465 ⋊ C2 |
| Sylow | C5 ⋊ #3190 |
420 conjugacy classes of subgroups.
| transitive degree | μt(G) = 160 |
Polycyclic presentation:
2^7,5|b^2=g,c^2=g,f^2=g,b^a=be,c^a=cf,d^a=de,f^a=fg,c^b=ce,f^c=fg,h^d=h^476 conjugacy classes — view the full character table.
| maximal subgroup of | D5×#3190, C2×#10612396, #12969869, … |
| maximal normal subgroup of | D5×#3190, C2×#10612396, #12969869, … |
| maximal quotient of | #12108330, #12108337, #12109574, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 14478);