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
539.1-b1
539.1-b
$3$
$9$
\(\Q(\sqrt{-11}) \)
$2$
$[0, 1]$
539.1
\( 7^{2} \cdot 11 \)
\( 7^{4} \cdot 11^{2} \)
$1.42801$
$(-2a+1), (7)$
0
$\Z/3\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
✓
$2, 3$
2Cn , 3B.1.1
$4$
\( 2^{2} \)
$1$
$1.803987222$
1.933947068
\( -\frac{78843215872}{539} \)
\( \bigl[0\) , \( 1\) , \( 1\) , \( -89\) , \( 295\bigr] \)
${y}^2+{y}={x}^{3}+{x}^{2}-89{x}+295$
13475.1-b1
13475.1-b
$3$
$9$
\(\Q(\sqrt{-11}) \)
$2$
$[0, 1]$
13475.1
\( 5^{2} \cdot 7^{2} \cdot 11 \)
\( 5^{6} \cdot 7^{4} \cdot 11^{2} \)
$3.19313$
$(-a-1), (-2a+1), (7)$
0
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
$2, 3$
2Cn , 3B
$1$
\( 2^{2} \)
$1$
$0.806767612$
1.945996699
\( -\frac{78843215872}{539} \)
\( \bigl[0\) , \( a + 1\) , \( 1\) , \( -267 a + 178\) , \( 1181 a - 3248\bigr] \)
${y}^2+{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-267a+178\right){x}+1181a-3248$
13475.3-b1
13475.3-b
$3$
$9$
\(\Q(\sqrt{-11}) \)
$2$
$[0, 1]$
13475.3
\( 5^{2} \cdot 7^{2} \cdot 11 \)
\( 5^{6} \cdot 7^{4} \cdot 11^{2} \)
$3.19313$
$(a-2), (-2a+1), (7)$
0
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
$2, 3$
2Cn , 3B
$1$
\( 2^{2} \)
$1$
$0.806767612$
1.945996699
\( -\frac{78843215872}{539} \)
\( \bigl[0\) , \( -a - 1\) , \( 1\) , \( 269 a - 90\) , \( -1449 a - 1977\bigr] \)
${y}^2+{y}={x}^{3}+\left(-a-1\right){x}^{2}+\left(269a-90\right){x}-1449a-1977$
26411.1-b1
26411.1-b
$3$
$9$
\(\Q(\sqrt{-11}) \)
$2$
$[0, 1]$
26411.1
\( 7^{4} \cdot 11 \)
\( 7^{16} \cdot 11^{2} \)
$3.77817$
$(-2a+1), (7)$
$1$
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2, 3$
2Cn , 3B
$1$
\( 2^{3} \)
$0.380901696$
$0.257712460$
0.947113353
\( -\frac{78843215872}{539} \)
\( \bigl[0\) , \( -1\) , \( 1\) , \( -4377\) , \( -110013\bigr] \)
${y}^2+{y}={x}^{3}-{x}^{2}-4377{x}-110013$
43659.3-a1
43659.3-a
$3$
$9$
\(\Q(\sqrt{-11}) \)
$2$
$[0, 1]$
43659.3
\( 3^{4} \cdot 7^{2} \cdot 11 \)
\( 3^{12} \cdot 7^{4} \cdot 11^{2} \)
$4.28404$
$(-a), (a-1), (-2a+1), (7)$
$1$
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2, 3$
2Cn , 3B.1.2
$1$
\( 2^{2} \)
$0.745116266$
$0.601329074$
2.161523128
\( -\frac{78843215872}{539} \)
\( \bigl[0\) , \( 0\) , \( 1\) , \( -804\) , \( -8775\bigr] \)
${y}^2+{y}={x}^{3}-804{x}-8775$
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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.