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×Q16 ⋊ C4 |
| Sylow | C5 ⋊ #2950 |
456 conjugacy classes of subgroups; only the 160 normal subgroups are shown.
This group has 456 conjugacy classes of subgroups — too many to draw. Only its 160 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=f,b^2=g,c^2=fg,e^2=g,b^a=be,d^a=dg,e^a=eg,h^a=h^2,e^b=eg,d^c=dg,h^c=h^3,h^f=h^458 conjugacy classes — view the full character table.
| maximal subgroup of | #13026713, #13026731, #13026865, … |
| maximal normal subgroup of | #13026713, #13026731, #13026865, … |
| maximal quotient of | #13031625, #13031626, #13031627, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 19516);