Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Fitting | C5×#541 ⋊ C2 |
| Sylow | C5 ⋊ #3260 |
346 conjugacy classes of subgroups; only the 117 normal subgroups are shown.
This group has 346 conjugacy classes of subgroups — too many to draw. Only its 117 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=g,d^2=e,f^2=g,b^a=be,c^a=cf,d^a=de,f^a=fg,c^b=ce,d^b=dg,f^c=fg,h^c=h^470 conjugacy classes — view the full character table.
| maximal subgroup of | D5×#3260, C2×#10615181, #12972280, … |
| maximal normal subgroup of | D5×#3260, C2×#10615181, #12972280, … |
| maximal quotient of | #12109283, #12109297, #12109716, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 17263);