Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C23 |
No aliases for this group.
| Fitting | C5×#340 ⋊ C2 |
| Sylow | C5 ⋊ #2073 |
258 conjugacy classes of subgroups; only the 77 normal subgroups are shown.
This group has 258 conjugacy classes of subgroups — too many to draw. Only its 77 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=e,c^2=d,f^2=g,b^a=bd,c^a=ceg,h^a=h^4,c^b=cf,f^b=fg,h^b=h^4,f^c=fg88 conjugacy classes — view the full character table.
| maximal subgroup of | D5×#2073, C2×#10599696, #12128055, … |
| maximal normal subgroup of | D5×#2073, C2×#10599696, #12128055, … |
| maximal quotient of | #12004038, #12004043, #12004059, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 1778);