Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Fitting | C5×#485 ⋊ C2 |
| Sylow | C5 ⋊ #3091 |
420 conjugacy classes of subgroups.
| transitive degree | μt(G) = 160 |
Polycyclic presentation:
2^7,5|c^2=e,d^2=g,f^2=g,b^a=be,c^a=cf,f^a=fg,h^a=h^4,h^b=h^4,f^c=fg,h^d=h^476 conjugacy classes — view the full character table.
| maximal subgroup of | D5×#3091, C2×#10613246, #12967114, … |
| maximal normal subgroup of | D5×#3091, C2×#10613246, #12967114, … |
| maximal quotient of | #12099092, #12100024, #12100516, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 15328);