Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C16 · Schur multiplier (H2) = C22 |
No aliases for this group.
| Sylow | C5 ⋊ #1322 |
108 conjugacy classes of subgroups.
| transitive degree | μt(G) = 320 |
Polycyclic presentation:
2^7,5|a^2=d,b^2=e,d^2=f,f^2=g,b^a=bc,c^a=ce,h^a=h^4,d^b=de124 conjugacy classes — view the full character table.
| maximal subgroup of | #11985922, #11985923, #11985924, … |
| maximal normal subgroup of | #11985922, #11985923, #11985924, … |
| maximal quotient of | #11985935, #11985937, #11985939, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 282);