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
32.2-a2
32.2-a
$2$
$17$
\(\Q(\sqrt{-127}) \)
$2$
$[0, 1]$
32.2
\( 2^{5} \)
\( 2^{30} \cdot 11^{12} \)
$2.39512$
$(2,a), (2,a+1)$
$2$
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
$17$
17B
$1$
\( 2^{2} \)
$0.514595823$
$2.451929956$
3.582798921
\( -\frac{6357609}{131072} a + \frac{1888137}{4096} \)
\( \bigl[a\) , \( -a - 1\) , \( a\) , \( -44 a + 648\) , \( -476 a + 7792\bigr] \)
${y}^2+a{x}{y}+a{y}={x}^3+\left(-a-1\right){x}^2+\left(-44a+648\right){x}-476a+7792$
32.5-a2
32.5-a
$2$
$17$
\(\Q(\sqrt{-127}) \)
$2$
$[0, 1]$
32.5
\( 2^{5} \)
\( 2^{42} \)
$2.39512$
$(2,a), (2,a+1)$
$2$
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
$17$
17B
$1$
\( 2^{2} \)
$0.514595823$
$2.451929956$
3.582798921
\( -\frac{6357609}{131072} a + \frac{1888137}{4096} \)
\( \bigl[a + 1\) , \( 1\) , \( 0\) , \( -4\) , \( -2 a + 58\bigr] \)
${y}^2+\left(a+1\right){x}{y}={x}^3+{x}^2-4{x}-2a+58$
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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.