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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
220.2-c2 220.2-c \(\Q(\sqrt{-55}) \) \( 2^{2} \cdot 5 \cdot 11 \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.138104932$ $1.376145879$ 2.050134267 \( \frac{109902239}{1100000} \) \( \bigl[1\) , \( 0\) , \( 1\) , \( 249\) , \( -6102\bigr] \) ${y}^2+{x}{y}+{y}={x}^3+249{x}-6102$
220.2-f2 220.2-f \(\Q(\sqrt{-55}) \) \( 2^{2} \cdot 5 \cdot 11 \) $1$ $\Z/5\Z$ $\mathrm{SU}(2)$ $0.632146461$ $1.376145879$ 9.384061113 \( \frac{109902239}{1100000} \) \( \bigl[1\) , \( 1\) , \( 1\) , \( 10\) , \( -45\bigr] \) ${y}^2+{x}{y}+{y}={x}^3+{x}^2+10{x}-45$
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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.