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Label Class Base field Conductor norm Rank Torsion CM Regulator Period Leading coeff j-invariant Weierstrass coefficients Weierstrass equation
147.1-a7 147.1-a \(\Q(\sqrt{3}) \) \( 3 \cdot 7^{2} \) $0$ $\Z/2\Z\oplus\Z/2\Z$ $1$ $0.814020435$ 0.939949835 \( \frac{53297461115137}{147} \) \( \bigl[1\) , \( 0\) , \( 0\) , \( -784\) , \( -8515\bigr] \) ${y}^2+{x}{y}={x}^{3}-784{x}-8515$
147.1-b7 147.1-b \(\Q(\sqrt{3}) \) \( 3 \cdot 7^{2} \) $1$ $\Z/2\Z\oplus\Z/4\Z$ $2.985196834$ $14.60752776$ 1.573508462 \( \frac{53297461115137}{147} \) \( \bigl[a\) , \( -1\) , \( 0\) , \( -784\) , \( 8515\bigr] \) ${y}^2+a{x}{y}={x}^{3}-{x}^{2}-784{x}+8515$
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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.