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 |
20000.1-a1 |
20000.1-a |
$2$ |
$2$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{16} \) |
$3.00567$ |
$(a), (5)$ |
$2$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
|
$2$ |
2B |
$1$ |
\( 2^{3} \) |
$0.813415655$ |
$0.820904889$ |
3.777290258 |
\( -\frac{64}{25} \) |
\( \bigl[0\) , \( 1\) , \( 0\) , \( -8\) , \( 238\bigr] \) |
${y}^2={x}^{3}+{x}^{2}-8{x}+238$ |
20000.1-a2 |
20000.1-a |
$2$ |
$2$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{14} \) |
$3.00567$ |
$(a), (5)$ |
$2$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
|
$2$ |
2B |
$1$ |
\( 2^{3} \) |
$0.813415655$ |
$0.820904889$ |
3.777290258 |
\( \frac{438976}{5} \) |
\( \bigl[0\) , \( 1\) , \( 0\) , \( -158\) , \( -812\bigr] \) |
${y}^2={x}^{3}+{x}^{2}-158{x}-812$ |
20000.1-b1 |
20000.1-b |
$1$ |
$1$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{6} \cdot 5^{16} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\mathsf{trivial}$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
✓ |
$2, 5$ |
2Cn, 5Ns |
$1$ |
\( 2 \cdot 3 \) |
$0.196377791$ |
$1.063939980$ |
1.772865336 |
\( -5000 \) |
\( \bigl[a\) , \( 1\) , \( a\) , \( -51\) , \( -176\bigr] \) |
${y}^2+a{x}{y}+a{y}={x}^{3}+{x}^{2}-51{x}-176$ |
20000.1-c1 |
20000.1-c |
$1$ |
$1$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{6} \cdot 5^{4} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\mathsf{trivial}$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
✓ |
$2, 5$ |
2Cn, 5Ns |
$1$ |
\( 2 \) |
$0.218002349$ |
$5.319699904$ |
3.280146962 |
\( -5000 \) |
\( \bigl[a\) , \( 1\) , \( 0\) , \( -2\) , \( 1\bigr] \) |
${y}^2+a{x}{y}={x}^{3}+{x}^{2}-2{x}+1$ |
20000.1-d1 |
20000.1-d |
$1$ |
$1$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{4} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\mathsf{trivial}$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
|
|
✓ |
$2$ |
2Cn |
$1$ |
\( 2^{2} \) |
$0.176456074$ |
$4.043909875$ |
4.036575423 |
\( -320 \) |
\( \bigl[0\) , \( a\) , \( 0\) , \( 1\) , \( -a\bigr] \) |
${y}^2={x}^{3}+a{x}^{2}+{x}-a$ |
20000.1-e1 |
20000.1-e |
$1$ |
$1$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{16} \) |
$3.00567$ |
$(a), (5)$ |
0 |
$\mathsf{trivial}$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
|
|
✓ |
$2$ |
2Cn |
$1$ |
\( 2 \) |
$1$ |
$0.808781975$ |
1.143790438 |
\( -320 \) |
\( \bigl[0\) , \( a\) , \( 0\) , \( 41\) , \( 199 a\bigr] \) |
${y}^2={x}^{3}+a{x}^{2}+41{x}+199a$ |
20000.1-f1 |
20000.1-f |
$2$ |
$2$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{6} \) |
$3.00567$ |
$(a), (5)$ |
$2$ |
$\Z/2\Z$ |
$\textsf{potential}$ |
$-4$ |
$N(\mathrm{U}(1))$ |
✓ |
✓ |
|
✓ |
|
|
$1$ |
\( 2^{2} \) |
$0.713078665$ |
$3.074676569$ |
6.201287618 |
\( 1728 \) |
\( \bigl[0\) , \( 0\) , \( 0\) , \( 5\) , \( 0\bigr] \) |
${y}^2={x}^{3}+5{x}$ |
20000.1-f2 |
20000.1-f |
$2$ |
$2$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{6} \) |
$3.00567$ |
$(a), (5)$ |
$2$ |
$\Z/2\Z$ |
$\textsf{potential}$ |
$-4$ |
$N(\mathrm{U}(1))$ |
✓ |
✓ |
|
✓ |
|
|
$1$ |
\( 2^{2} \) |
$0.713078665$ |
$3.074676569$ |
6.201287618 |
\( 1728 \) |
\( \bigl[0\) , \( 0\) , \( 0\) , \( -5\) , \( 0\bigr] \) |
${y}^2={x}^{3}-5{x}$ |
20000.1-g1 |
20000.1-g |
$4$ |
$4$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{12} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{potential}$ |
$-4$ |
$N(\mathrm{U}(1))$ |
✓ |
✓ |
|
✓ |
|
|
$1$ |
\( 2^{3} \) |
$0.949741086$ |
$1.375037163$ |
3.693725825 |
\( 1728 \) |
\( \bigl[0\) , \( 0\) , \( 0\) , \( 25\) , \( 0\bigr] \) |
${y}^2={x}^{3}+25{x}$ |
20000.1-g2 |
20000.1-g |
$4$ |
$4$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{12} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\Z/2\Z\oplus\Z/2\Z$ |
$\textsf{potential}$ |
$-4$ |
$N(\mathrm{U}(1))$ |
✓ |
✓ |
|
✓ |
$2$ |
2Cs |
$1$ |
\( 2^{4} \) |
$1.899482172$ |
$1.375037163$ |
3.693725825 |
\( 1728 \) |
\( \bigl[0\) , \( 0\) , \( 0\) , \( -25\) , \( 0\bigr] \) |
${y}^2={x}^{3}-25{x}$ |
20000.1-g3 |
20000.1-g |
$4$ |
$4$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{6} \cdot 5^{12} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{potential}$ |
$-16$ |
$N(\mathrm{U}(1))$ |
✓ |
✓ |
|
✓ |
|
|
$1$ |
\( 2^{3} \) |
$0.949741086$ |
$1.375037163$ |
3.693725825 |
\( 287496 \) |
\( \bigl[a\) , \( -1\) , \( 0\) , \( -68\) , \( 253\bigr] \) |
${y}^2+a{x}{y}={x}^{3}-{x}^{2}-68{x}+253$ |
20000.1-g4 |
20000.1-g |
$4$ |
$4$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{6} \cdot 5^{12} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{potential}$ |
$-16$ |
$N(\mathrm{U}(1))$ |
✓ |
✓ |
|
✓ |
|
|
$1$ |
\( 2^{3} \) |
$0.949741086$ |
$1.375037163$ |
3.693725825 |
\( 287496 \) |
\( \bigl[a\) , \( -1\) , \( a\) , \( -67\) , \( -184\bigr] \) |
${y}^2+a{x}{y}+a{y}={x}^{3}-{x}^{2}-67{x}-184$ |
20000.1-h1 |
20000.1-h |
$2$ |
$2$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{18} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{potential}$ |
$-4$ |
$N(\mathrm{U}(1))$ |
✓ |
✓ |
|
✓ |
|
|
$1$ |
\( 2^{2} \) |
$4.982067391$ |
$0.614935313$ |
4.332654213 |
\( 1728 \) |
\( \bigl[0\) , \( 0\) , \( 0\) , \( 125\) , \( 0\bigr] \) |
${y}^2={x}^{3}+125{x}$ |
20000.1-h2 |
20000.1-h |
$2$ |
$2$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{18} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{potential}$ |
$-4$ |
$N(\mathrm{U}(1))$ |
✓ |
✓ |
|
✓ |
|
|
$1$ |
\( 2^{3} \) |
$2.491033695$ |
$0.614935313$ |
4.332654213 |
\( 1728 \) |
\( \bigl[0\) , \( 0\) , \( 0\) , \( -125\) , \( 0\bigr] \) |
${y}^2={x}^{3}-125{x}$ |
20000.1-i1 |
20000.1-i |
$1$ |
$1$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{16} \) |
$3.00567$ |
$(a), (5)$ |
0 |
$\mathsf{trivial}$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
|
|
✓ |
$2$ |
2Cn |
$1$ |
\( 2 \) |
$1$ |
$0.808781975$ |
1.143790438 |
\( -320 \) |
\( \bigl[0\) , \( -a\) , \( 0\) , \( 41\) , \( -199 a\bigr] \) |
${y}^2={x}^{3}-a{x}^{2}+41{x}-199a$ |
20000.1-j1 |
20000.1-j |
$1$ |
$1$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{4} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\mathsf{trivial}$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
|
|
✓ |
$2$ |
2Cn |
$1$ |
\( 2^{2} \) |
$0.176456074$ |
$4.043909875$ |
4.036575423 |
\( -320 \) |
\( \bigl[0\) , \( -a\) , \( 0\) , \( 1\) , \( a\bigr] \) |
${y}^2={x}^{3}-a{x}^{2}+{x}+a$ |
20000.1-k1 |
20000.1-k |
$1$ |
$1$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{6} \cdot 5^{4} \) |
$3.00567$ |
$(a), (5)$ |
$2$ |
$\mathsf{trivial}$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
✓ |
$2, 5$ |
2Cn, 5Ns |
$1$ |
\( 2 \) |
$0.260556717$ |
$5.319699904$ |
7.840872579 |
\( -5000 \) |
\( \bigl[a\) , \( 0\) , \( 0\) , \( -2\) , \( -1\bigr] \) |
${y}^2+a{x}{y}={x}^{3}-2{x}-1$ |
20000.1-l1 |
20000.1-l |
$1$ |
$1$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{6} \cdot 5^{16} \) |
$3.00567$ |
$(a), (5)$ |
0 |
$\mathsf{trivial}$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
✓ |
$2, 5$ |
2Cn, 5Ns |
$1$ |
\( 2 \cdot 3 \) |
$1$ |
$1.063939980$ |
4.513915051 |
\( -5000 \) |
\( \bigl[a\) , \( 0\) , \( a\) , \( -51\) , \( 177\bigr] \) |
${y}^2+a{x}{y}+a{y}={x}^{3}-51{x}+177$ |
20000.1-m1 |
20000.1-m |
$2$ |
$2$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{16} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
|
$2$ |
2B |
$1$ |
\( 2^{3} \) |
$3.640840235$ |
$0.820904889$ |
8.453556469 |
\( -\frac{64}{25} \) |
\( \bigl[0\) , \( -1\) , \( 0\) , \( -8\) , \( -238\bigr] \) |
${y}^2={x}^{3}-{x}^{2}-8{x}-238$ |
20000.1-m2 |
20000.1-m |
$2$ |
$2$ |
\(\Q(\sqrt{-2}) \) |
$2$ |
$[0, 1]$ |
20000.1 |
\( 2^{5} \cdot 5^{4} \) |
\( 2^{12} \cdot 5^{14} \) |
$3.00567$ |
$(a), (5)$ |
$1$ |
$\Z/2\Z$ |
$\textsf{no}$ |
|
$\mathrm{SU}(2)$ |
✓ |
✓ |
|
|
$2$ |
2B |
$1$ |
\( 2^{4} \) |
$1.820420117$ |
$0.820904889$ |
8.453556469 |
\( \frac{438976}{5} \) |
\( \bigl[0\) , \( -1\) , \( 0\) , \( -158\) , \( 812\bigr] \) |
${y}^2={x}^{3}-{x}^{2}-158{x}+812$ |
*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.