Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| Fitting | C4×C5×D4 ⋊ C4 |
| Sylow | C5 ⋊ #1759 |
320 conjugacy classes of subgroups; only the 92 normal subgroups are shown.
This group has 320 conjugacy classes of subgroups — too many to draw. Only its 92 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=e,b^2=f,c^2=e,d^2=g,b^a=bd,d^a=dg,f^a=fg,c^b=cg,h^b=h^2,h^f=h^464 conjugacy classes — view the full character table.
| maximal subgroup of | #13017722, #13017724, #13017727, … |
| maximal normal subgroup of | #13017722, #13017724, #13017727, … |
| maximal quotient of | #13016836, #13016840, #13016848, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 6498);