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Curve Isogeny class
LMFDB label Cremona label LMFDB label Cremona label Weierstrass coefficients Rank Torsion structure
644.a1 644b1 644.a 644b $[0, -1, 0, 2, -7]$ $1$ trivial
644.b1 644a1 644.b 644a $[0, 1, 0, 6, -43]$ $1$ trivial
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