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-a1
24.1-a
$6$
$8$
\(\Q(\sqrt{-129}) \)
$2$
$[0, 1]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{22} \cdot 3^{16} \)
$4.49279$
$(2,a+1), (3,a)$
$1$
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$4$
\( 2^{2} \)
$2.078568110$
$3.635347017$
2.661186243
\( \frac{207646}{6561} \)
\( \bigl[0\) , \( -1\) , \( 0\) , \( 16\) , \( -180\bigr] \)
${y}^2={x}^3-{x}^2+16{x}-180$
24.1-b1
24.1-b
$6$
$8$
\(\Q(\sqrt{-129}) \)
$2$
$[0, 1]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{10} \cdot 3^{16} \cdot 23^{12} \)
$4.49279$
$(2,a+1), (3,a)$
0
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$4$
\( 2^{2} \)
$1$
$3.635347017$
0.640148915
\( \frac{207646}{6561} \)
\( \bigl[a + 1\) , \( 1\) , \( 0\) , \( -167 a + 1371\) , \( 25242 a - 14271\bigr] \)
${y}^2+\left(a+1\right){x}{y}={x}^3+{x}^2+\left(-167a+1371\right){x}+25242a-14271$
24.1-c1
24.1-c
$6$
$8$
\(\Q(\sqrt{-129}) \)
$2$
$[0, 1]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{22} \cdot 3^{16} \)
$4.49279$
$(2,a+1), (3,a)$
0
$\Z/8\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
$16$
\( 2^{5} \)
$1$
$3.635347017$
1.280297830
\( \frac{207646}{6561} \)
\( \bigl[0\) , \( 1\) , \( 0\) , \( 16\) , \( 180\bigr] \)
${y}^2={x}^3+{x}^2+16{x}+180$
24.1-d1
24.1-d
$6$
$8$
\(\Q(\sqrt{-129}) \)
$2$
$[0, 1]$
24.1
\( 2^{3} \cdot 3 \)
\( 2^{10} \cdot 3^{16} \cdot 23^{12} \)
$4.49279$
$(2,a+1), (3,a)$
$0 \le r \le 1$
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2$
2Cs
\( 2^{5} \)
$1$
$3.635347017$
11.39152378
\( \frac{207646}{6561} \)
\( \bigl[a + 1\) , \( -a\) , \( a + 1\) , \( -147 a + 1456\) , \( -21956 a - 10078\bigr] \)
${y}^2+\left(a+1\right){x}{y}+\left(a+1\right){y}={x}^3-a{x}^2+\left(-147a+1456\right){x}-21956a-10078$
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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.