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Label Class Base field Conductor norm Rank Torsion CM Sato-Tate Regulator Period Leading coeff j-invariant Weierstrass coefficients Weierstrass equation
504.1-v4 504.1-v \(\Q(\sqrt{7}) \) \( 2^{3} \cdot 3^{2} \cdot 7 \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.498256261$ $2.871513647$ 4.866952851 \( \frac{6940769488}{35721} \) \( \bigl[a + 1\) , \( a - 1\) , \( a + 1\) , \( 3028 a - 8010\) , \( 143877 a - 380662\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a+1\right){y}={x}^{3}+\left(a-1\right){x}^{2}+\left(3028a-8010\right){x}+143877a-380662$
504.1-w4 504.1-w \(\Q(\sqrt{7}) \) \( 2^{3} \cdot 3^{2} \cdot 7 \) 0 $\Z/2\Z\oplus\Z/4\Z$ $\mathrm{SU}(2)$ $1$ $10.77881089$ 1.018501895 \( \frac{6940769488}{35721} \) \( \bigl[a + 1\) , \( a\) , \( a + 1\) , \( 3029 a - 8009\) , \( -148859 a + 393848\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a+1\right){y}={x}^{3}+a{x}^{2}+\left(3029a-8009\right){x}-148859a+393848$
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  *The rank, regulator and analytic order of Ш are not known for all curves in the database; curves for which these are unknown will not appear in searches specifying one of these quantities.