Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24×C4 |
No aliases for this group.
| Fitting | C5×#405 ⋊ C2 |
| Sylow | C5 ⋊ #3156 |
532 conjugacy classes of subgroups; only the 165 normal subgroups are shown.
This group has 532 conjugacy classes of subgroups — too many to draw. Only its 165 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 320 |
Polycyclic presentation:
2^7,5|a^2=g,b^2=eg,c^2=f,e^2=g,b^a=be,c^a=cf,e^a=eg,h^a=h^4,d^c=dg112 conjugacy classes — view the full character table.
| maximal subgroup of | #12017575, #12017577, #12018189, … |
| maximal normal subgroup of | #12017575, #12017577, #12018189, … |
| maximal quotient of | #12087176, #12087220, #12087238, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 12389);