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Label Class Base field Conductor norm Rank Torsion CM Regulator Period Leading coeff j-invariant Weierstrass coefficients Weierstrass equation
28224.1-b1 28224.1-b \(\Q(\sqrt{-1}) \) \( 2^{6} \cdot 3^{2} \cdot 7^{2} \) $2$ $\Z/4\Z$ $1.779146940$ $2.248837995$ 4.001013241 \( \frac{830584}{7203} \) \( \bigl[i + 1\) , \( -i\) , \( i + 1\) , \( -i - 4\) , \( -11 i\bigr] \) ${y}^2+\left(i+1\right){x}{y}+\left(i+1\right){y}={x}^{3}-i{x}^{2}+\left(-i-4\right){x}-11i$
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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.