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 |
4225.2-a1 |
4225.2-a |
$2$ |
$2$ |
\(\Q(\sqrt{-3}) \) |
$2$ |
$[0, 1]$ |
4225.2 |
\( 5^{2} \cdot 13^{2} \) |
\( 5^{4} \cdot 13^{4} \) |
$1.24783$ |
$(-4a+1), (4a-3), (5)$ |
$2$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
✓ |
|
$2$ |
2B |
$1$ |
\( 2^{3} \) |
$0.038447381$ |
$3.421514516$ |
1.215190886 |
\( \frac{6967871}{4225} \) |
\( \bigl[1\) , \( 0\) , \( 0\) , \( 4\) , \( 1\bigr] \) |
${y}^2+{x}{y}={x}^{3}+4{x}+1$ |
54925.2-a1 |
54925.2-a |
$2$ |
$2$ |
\(\Q(\sqrt{-3}) \) |
$2$ |
$[0, 1]$ |
54925.2 |
\( 5^{2} \cdot 13^{3} \) |
\( 5^{4} \cdot 13^{10} \) |
$2.36942$ |
$(-4a+1), (4a-3), (5)$ |
$0$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
|
|
|
$2$ |
2B |
$1$ |
\( 2^{4} \) |
$1$ |
$0.948957386$ |
4.383046421 |
\( \frac{6967871}{4225} \) |
\( \bigl[1\) , \( -a\) , \( 0\) , \( 32 a - 60\) , \( 36 a + 17\bigr] \) |
${y}^2+{x}{y}={x}^{3}-a{x}^{2}+\left(32a-60\right){x}+36a+17$ |
54925.3-a1 |
54925.3-a |
$2$ |
$2$ |
\(\Q(\sqrt{-3}) \) |
$2$ |
$[0, 1]$ |
54925.3 |
\( 5^{2} \cdot 13^{3} \) |
\( 5^{4} \cdot 13^{10} \) |
$2.36942$ |
$(-4a+1), (4a-3), (5)$ |
$0$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
|
|
|
$2$ |
2B |
$1$ |
\( 2^{4} \) |
$1$ |
$0.948957386$ |
4.383046421 |
\( \frac{6967871}{4225} \) |
\( \bigl[a + 1\) , \( -a + 1\) , \( 0\) , \( -28 a + 60\) , \( -36 a + 53\bigr] \) |
${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(-28a+60\right){x}-36a+53$ |
105625.2-e1 |
105625.2-e |
$2$ |
$2$ |
\(\Q(\sqrt{-3}) \) |
$2$ |
$[0, 1]$ |
105625.2 |
\( 5^{4} \cdot 13^{2} \) |
\( 5^{16} \cdot 13^{4} \) |
$2.79024$ |
$(-4a+1), (4a-3), (5)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
|
$2$ |
2B |
$1$ |
\( 2^{4} \) |
$0.908981164$ |
$0.684302903$ |
5.745960314 |
\( \frac{6967871}{4225} \) |
\( \bigl[a\) , \( a - 1\) , \( 0\) , \( -100 a\) , \( 125\bigr] \) |
${y}^2+a{x}{y}={x}^{3}+\left(a-1\right){x}^{2}-100a{x}+125$ |
Download to
Pari/GP
SageMath
Magma
*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.