Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| Fitting | C2×C5×#131 ⋊ C2 |
| Sylow | C5 ⋊ #2935 |
492 conjugacy classes of subgroups.
| transitive degree | μt(G) = 320 |
Polycyclic presentation:
2^7,5|a^2=f,c^2=f,f^2=g,b^a=be,h^a=h^4,d^b=dg,d^c=dg130 conjugacy classes — view the full character table.
| maximal subgroup of | #12121807, #12121809, #12121818, … |
| maximal normal subgroup of | #12121807, #12121809, #12121818, … |
| maximal quotient of | #12071056, #12071064, #12071066, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 17601);