Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C42 · Schur multiplier (H2) = C22 |
No aliases for this group.
| Sylow | C5 ⋊ #1306 |
192 conjugacy classes of subgroups; only the 44 normal subgroups are shown.
This group has 192 conjugacy classes of subgroups — too many to draw. Only its 44 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 160 |
Polycyclic presentation:
2^7,5|a^2=d,b^2=e,e^2=f,b^a=bc,c^a=cf,e^a=eg,c^b=cg,d^b=df,h^b=h^2,h^e=h^446 conjugacy classes — view the full character table.
| maximal subgroup of | #13014217, #13014218, #13014289, … |
| maximal normal subgroup of | #13014217, #13014218, #13014289, … |
| maximal quotient of | #13013251, #13013252, #13013262, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 790);