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-a5
24.1-a
$6$
$8$
\(\Q(\sqrt{-57}) \)
$2$
$[0, 1]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{8} \cdot 3^{2} \cdot 11^{12} \)
$2.98647$
$(2,a+1), (3,a)$
$1$
$\Z/4\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$1$
\( 2^{3} \)
$12.50076067$
$3.635347017$
6.019284716
\( \frac{28756228}{3} \)
\( \bigl[a + 1\) , \( -a\) , \( a + 1\) , \( 261 a - 24\) , \( 2158 a + 24154\bigr] \)
${y}^2+\left(a+1\right){x}{y}+\left(a+1\right){y}={x}^3-a{x}^2+\left(261a-24\right){x}+2158a+24154$
24.1-b5
24.1-b
$6$
$8$
\(\Q(\sqrt{-57}) \)
$2$
$[0, 1]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{8} \cdot 3^{2} \cdot 11^{12} \)
$2.98647$
$(2,a+1), (3,a)$
0
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$1$
\( 2^{3} \)
$1$
$3.635347017$
0.963026950
\( \frac{28756228}{3} \)
\( \bigl[a + 1\) , \( 1\) , \( 0\) , \( 253 a - 61\) , \( -4476 a - 23267\bigr] \)
${y}^2+\left(a+1\right){x}{y}={x}^3+{x}^2+\left(253a-61\right){x}-4476a-23267$
24.1-c5
24.1-c
$6$
$8$
\(\Q(\sqrt{-57}) \)
$2$
$[0, 1]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{20} \cdot 3^{2} \)
$2.98647$
$(2,a+1), (3,a)$
0
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$4$
\( 2^{2} \)
$1$
$3.635347017$
1.926053901
\( \frac{28756228}{3} \)
\( \bigl[0\) , \( 1\) , \( 0\) , \( -64\) , \( -220\bigr] \)
${y}^2={x}^3+{x}^2-64{x}-220$
24.1-d5
24.1-d
$6$
$8$
\(\Q(\sqrt{-57}) \)
$2$
$[0, 1]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{20} \cdot 3^{2} \)
$2.98647$
$(2,a+1), (3,a)$
$1$
$\Z/4\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$1$
\( 2^{2} \)
$17.52890723$
$3.635347017$
4.220202522
\( \frac{28756228}{3} \)
\( \bigl[0\) , \( -1\) , \( 0\) , \( -64\) , \( 220\bigr] \)
${y}^2={x}^3-{x}^2-64{x}+220$
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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.