Commentary history

1 edit.

jesper-petersen · 2026-09-26 10:03:45 UTC

Found by a conductor-oriented search in the standard Z/2Z x Z/4Z family y^2 = x(x+u^2)(x+v^2), with (u,v) = (4801,8401). Here v-u = 3600 = 60^2. The search used the same smooth-support / Nagao-filter strategy used for curve#1829. PARI/GP 2.17.4 gives exact rank 5 and torsion Z/2Z x Z/4Z. Conductor N = 63897470352240. This substantially improves the conductor of curve#1829 that I previously submitted.