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 |
63.1-a5 |
63.1-a |
$8$ |
$16$ |
\(\Q(\sqrt{7}) \) |
$2$ |
$[2, 0]$ |
63.1 |
\( 3^{2} \cdot 7 \) |
\( 3^{16} \cdot 7^{2} \) |
$1.33215$ |
$(-a+2), (-a-2), (a)$ |
0 |
$\Z/2\Z\oplus\Z/8\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
✓ |
|
$2$ |
2Cs |
$1$ |
\( 2^{7} \) |
$1$ |
$13.02432697$ |
1.230683220 |
\( \frac{6570725617}{45927} \) |
\( \bigl[1\) , \( 0\) , \( 0\) , \( -39\) , \( 90\bigr] \) |
${y}^2+{x}{y}={x}^{3}-39{x}+90$ |
63.1-b5 |
63.1-b |
$8$ |
$16$ |
\(\Q(\sqrt{7}) \) |
$2$ |
$[2, 0]$ |
63.1 |
\( 3^{2} \cdot 7 \) |
\( 3^{16} \cdot 7^{2} \) |
$1.33215$ |
$(-a+2), (-a-2), (a)$ |
$1$ |
$\Z/2\Z\oplus\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
✓ |
|
$2$ |
2Cs |
$1$ |
\( 2^{3} \) |
$1.492598417$ |
$3.651881942$ |
1.030103091 |
\( \frac{6570725617}{45927} \) |
\( \bigl[a\) , \( 1\) , \( a\) , \( -40\) , \( -130\bigr] \) |
${y}^2+a{x}{y}+a{y}={x}^{3}+{x}^{2}-40{x}-130$ |
441.1-a5 |
441.1-a |
$8$ |
$16$ |
\(\Q(\sqrt{7}) \) |
$2$ |
$[2, 0]$ |
441.1 |
\( 3^{2} \cdot 7^{2} \) |
\( 3^{16} \cdot 7^{8} \) |
$2.16684$ |
$(-a+2), (-a-2), (a)$ |
0 |
$\Z/2\Z\oplus\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
|
|
|
$2$ |
2Cs |
$1$ |
\( 2^{6} \) |
$1$ |
$2.606675619$ |
1.970461553 |
\( \frac{6570725617}{45927} \) |
\( \bigl[1\) , \( -a - 1\) , \( a\) , \( -13111 a - 34687\) , \( 1336023 a + 3534782\bigr] \) |
${y}^2+{x}{y}+a{y}={x}^{3}+\left(-a-1\right){x}^{2}+\left(-13111a-34687\right){x}+1336023a+3534782$ |
441.1-f5 |
441.1-f |
$8$ |
$16$ |
\(\Q(\sqrt{7}) \) |
$2$ |
$[2, 0]$ |
441.1 |
\( 3^{2} \cdot 7^{2} \) |
\( 3^{16} \cdot 7^{8} \) |
$2.16684$ |
$(-a+2), (-a-2), (a)$ |
0 |
$\Z/2\Z\oplus\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
|
|
|
$2$ |
2Cs |
$1$ |
\( 2^{6} \) |
$1$ |
$2.606675619$ |
1.970461553 |
\( \frac{6570725617}{45927} \) |
\( \bigl[a\) , \( a - 1\) , \( 1\) , \( -13111 a - 34687\) , \( -1336023 a - 3534784\bigr] \) |
${y}^2+a{x}{y}+{y}={x}^{3}+\left(a-1\right){x}^{2}+\left(-13111a-34687\right){x}-1336023a-3534784$ |
567.1-c5 |
567.1-c |
$8$ |
$16$ |
\(\Q(\sqrt{7}) \) |
$2$ |
$[2, 0]$ |
567.1 |
\( 3^{4} \cdot 7 \) |
\( 3^{28} \cdot 7^{2} \) |
$2.30735$ |
$(-a+2), (-a-2), (a)$ |
$1$ |
$\Z/2\Z\oplus\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
|
$2$ |
2Cs |
$1$ |
\( 2^{5} \) |
$1.319254411$ |
$4.341442324$ |
4.329558047 |
\( \frac{6570725617}{45927} \) |
\( \bigl[a\) , \( -1\) , \( 0\) , \( -351\) , \( 2430\bigr] \) |
${y}^2+a{x}{y}={x}^{3}-{x}^{2}-351{x}+2430$ |
567.1-l5 |
567.1-l |
$8$ |
$16$ |
\(\Q(\sqrt{7}) \) |
$2$ |
$[2, 0]$ |
567.1 |
\( 3^{4} \cdot 7 \) |
\( 3^{28} \cdot 7^{2} \) |
$2.30735$ |
$(-a+2), (-a-2), (a)$ |
0 |
$\Z/2\Z\oplus\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
|
$2$ |
2Cs |
$4$ |
\( 2^{5} \) |
$1$ |
$1.217293980$ |
1.840375511 |
\( \frac{6570725617}{45927} \) |
\( \bigl[1\) , \( -1\) , \( 0\) , \( -351\) , \( -2430\bigr] \) |
${y}^2+{x}{y}={x}^{3}-{x}^{2}-351{x}-2430$ |
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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.