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×M16 ⋊ C4 |
| Sylow | C5 ⋊ #2911 |
492 conjugacy classes of subgroups; only the 200 normal subgroups are shown.
This group has 492 conjugacy classes of subgroups — too many to draw. Only its 200 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 80 |
Polycyclic presentation:
2^7,5|a^2=f,b^2=e,d^2=g,e^2=g,b^a=be,e^a=eg,h^a=h^2,c^b=cg,h^f=h^464 conjugacy classes — view the full character table.
| maximal subgroup of | #13022193, #13022194, #13022208, … |
| maximal normal subgroup of | #13022193, #13022194, #13022208, … |
| maximal quotient of | #13031295, #13031296, #13031297, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 19491);