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
24.1-a4
24.1-a
$6$
$8$
\(\Q(\sqrt{30}) \)
$2$
$[2, 0]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{20} \cdot 3^{8} \)
$2.16662$
$(2,a), (3,a)$
$1$
$\Z/2\Z\oplus\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$1$
\( 2^{4} \)
$2.158547729$
$9.301119475$
3.665525556
\( \frac{1556068}{81} \)
\( \bigl[0\) , \( a + 1\) , \( 0\) , \( -1070 a - 5854\) , \( -44886 a - 245854\bigr] \)
${y}^2={x}^{3}+\left(a+1\right){x}^{2}+\left(-1070a-5854\right){x}-44886a-245854$
24.1-b4
24.1-b
$6$
$8$
\(\Q(\sqrt{30}) \)
$2$
$[2, 0]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{20} \cdot 3^{8} \)
$2.16662$
$(2,a), (3,a)$
$1$
$\Z/2\Z\oplus\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$1$
\( 2^{3} \)
$2.841664688$
$9.301119475$
2.412778368
\( \frac{1556068}{81} \)
\( \bigl[0\) , \( -1\) , \( 0\) , \( -24\) , \( -36\bigr] \)
${y}^2={x}^{3}-{x}^{2}-24{x}-36$
24.1-c4
24.1-c
$6$
$8$
\(\Q(\sqrt{30}) \)
$2$
$[2, 0]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{8} \cdot 3^{8} \)
$2.16662$
$(2,a), (3,a)$
$1$
$\Z/2\Z\oplus\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$1$
\( 2^{4} \)
$1.068541721$
$22.73403407$
4.435140305
\( \frac{1556068}{81} \)
\( \bigl[a\) , \( -a + 1\) , \( 0\) , \( 262 a - 1432\) , \( -4084 a + 22370\bigr] \)
${y}^2+a{x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(262a-1432\right){x}-4084a+22370$
24.1-d4
24.1-d
$6$
$8$
\(\Q(\sqrt{30}) \)
$2$
$[2, 0]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{8} \cdot 3^{8} \)
$2.16662$
$(2,a), (3,a)$
$1$
$\Z/2\Z\oplus\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$1$
\( 2^{3} \)
$1.665930347$
$22.73403407$
3.457345033
\( \frac{1556068}{81} \)
\( \bigl[a\) , \( -1\) , \( a\) , \( -7\) , \( -5\bigr] \)
${y}^2+a{x}{y}+a{y}={x}^{3}-{x}^{2}-7{x}-5$
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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.