Label
Class
Class size
Class degree
Base field
Field degree
Field signature
Conductor
Conductor norm
Discriminant norm
Root analytic conductor
Bad primes
Rank
Torsion
CM
CM
Sato-Tate
$\Q$-curve
Base change
Semistable
Potentially good
Nonmax $\ell$
mod-$\ell$ images
$Ш_{\textrm{an}}$
Tamagawa
Regulator
Period
Leading coeff
j-invariant
Weierstrass coefficients
Weierstrass equation
400.8-a1
400.8-a
$4$
$6$
\(\Q(\sqrt{-119}) \)
$2$
$[0, 1]$
400.8
\( 2^{4} \cdot 5^{2} \)
\( 2^{16} \cdot 5^{12} \)
$4.35940$
$(2,a), (2,a+1), (5,a), (5,a+4)$
$1$
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2, 3$
2B , 3B.1.1
$1$
\( 2^{2} \)
$3.724661610$
$2.141031885$
1.462064300
\( -\frac{20720464}{15625} \)
\( \bigl[0\) , \( 1\) , \( 0\) , \( -36\) , \( -140\bigr] \)
${y}^2={x}^3+{x}^2-36{x}-140$
400.8-b1
400.8-b
$4$
$6$
\(\Q(\sqrt{-119}) \)
$2$
$[0, 1]$
400.8
\( 2^{4} \cdot 5^{2} \)
\( 2^{16} \cdot 5^{12} \cdot 7^{12} \)
$4.35940$
$(2,a), (2,a+1), (5,a), (5,a+4)$
$1$
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2, 3$
2B , 3B
$1$
\( 2^{2} \cdot 3^{2} \)
$3.982682848$
$2.141031885$
14.07012265
\( -\frac{20720464}{15625} \)
\( \bigl[0\) , \( -1\) , \( 0\) , \( -1780\) , \( 44472\bigr] \)
${y}^2={x}^3-{x}^2-1780{x}+44472$
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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.