Rational 3-isogeny partner of curve #5222: https://elliptic-rank.icarm.cloud/curve/5222. The source Mordell curve is y^2 + y = x^3 - 2619, submitted by Daniel Błażewicz with four independent points. Applying the standard Mordell 3-isogeny and returning to a minimal integral model gives y^2 + y = x^3 + 70706. The four submitted points are exact images of the source generators under that isogeny.
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