Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C23 |
No aliases for this group.
| Fitting | C5×#424 ⋊ C2 |
| Sylow | C5 ⋊ #2045 |
296 conjugacy classes of subgroups; only the 69 normal subgroups are shown.
This group has 296 conjugacy classes of subgroups — too many to draw. Only its 69 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|c^2=d,d^2=g,b^a=bd,c^a=ce,d^a=dg,h^a=h^4,c^b=cf,d^b=dg,h^b=h^4,e^c=eg,f^c=fg82 conjugacy classes — view the full character table.
| maximal subgroup of | #12011775, #12011777, #12011780, … |
| maximal normal subgroup of | #12011775, #12011777, #12011780, … |
| maximal quotient of | #12002868, #12002875, #12002924, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 3415);