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
14.1-a4
14.1-a
$6$
$18$
\(\Q(\sqrt{14}) \)
$2$
$[2, 0]$
14.1
\( 2 \cdot 7 \)
\( 2^{6} \cdot 7^{12} \)
$1.29349$
$(-a+4), (-2a+7)$
$1$
$\Z/6\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
✓
$2, 3$
2B , 3Cs.1.1
$1$
\( 2^{3} \cdot 3 \)
$2.105085112$
$3.925715946$
1.472425245
\( \frac{4956477625}{941192} \)
\( \bigl[1\) , \( 0\) , \( 1\) , \( -36\) , \( -70\bigr] \)
${y}^2+{x}{y}+{y}={x}^{3}-36{x}-70$
14.1-b4
14.1-b
$6$
$18$
\(\Q(\sqrt{14}) \)
$2$
$[2, 0]$
14.1
\( 2 \cdot 7 \)
\( 2^{6} \cdot 7^{12} \)
$1.29349$
$(-a+4), (-2a+7)$
0
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
✓
$2, 3$
2B , 3Cs
$1$
\( 2^{2} \)
$1$
$7.027708105$
0.939116998
\( \frac{4956477625}{941192} \)
\( \bigl[1\) , \( a - 1\) , \( 0\) , \( 4262 a - 15944\) , \( -246560 a + 922544\bigr] \)
${y}^2+{x}{y}={x}^{3}+\left(a-1\right){x}^{2}+\left(4262a-15944\right){x}-246560a+922544$
98.1-a4
98.1-a
$6$
$18$
\(\Q(\sqrt{14}) \)
$2$
$[2, 0]$
98.1
\( 2 \cdot 7^{2} \)
\( 2^{6} \cdot 7^{18} \)
$2.10397$
$(-a+4), (-2a+7)$
$1$
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
$2, 3$
2B , 3Cs
$1$
\( 2^{3} \)
$2.451474306$
$1.985259457$
2.601420732
\( \frac{4956477625}{941192} \)
\( \bigl[a + 1\) , \( -a + 1\) , \( 0\) , \( 993 a - 3721\) , \( 29312 a - 109675\bigr] \)
${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(993a-3721\right){x}+29312a-109675$
98.1-b4
98.1-b
$6$
$18$
\(\Q(\sqrt{14}) \)
$2$
$[2, 0]$
98.1
\( 2 \cdot 7^{2} \)
\( 2^{6} \cdot 7^{18} \)
$2.10397$
$(-a+4), (-2a+7)$
$1$
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
$2, 3$
2B , 3Cs
$1$
\( 2^{3} \)
$2.451474306$
$1.985259457$
2.601420732
\( \frac{4956477625}{941192} \)
\( \bigl[a + 1\) , \( 1\) , \( 0\) , \( -993 a - 3721\) , \( -29312 a - 109675\bigr] \)
${y}^2+\left(a+1\right){x}{y}={x}^{3}+{x}^{2}+\left(-993a-3721\right){x}-29312a-109675$
112.1-a4
112.1-a
$6$
$18$
\(\Q(\sqrt{14}) \)
$2$
$[2, 0]$
112.1
\( 2^{4} \cdot 7 \)
\( 2^{18} \cdot 7^{12} \)
$2.17539$
$(-a+4), (-2a+7)$
$1$
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2, 3$
2B , 3Cs
$1$
\( 2^{4} \cdot 3 \)
$0.584534527$
$1.962857973$
3.679732717
\( \frac{4956477625}{941192} \)
\( \bigl[a\) , \( 0\) , \( a\) , \( -145\) , \( -702\bigr] \)
${y}^2+a{x}{y}+a{y}={x}^{3}-145{x}-702$
112.1-f4
112.1-f
$6$
$18$
\(\Q(\sqrt{14}) \)
$2$
$[2, 0]$
112.1
\( 2^{4} \cdot 7 \)
\( 2^{18} \cdot 7^{12} \)
$2.17539$
$(-a+4), (-2a+7)$
0
$\Z/2\Z$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
✓
$2, 3$
2B , 3Cs
$1$
\( 2^{3} \)
$1$
$3.513854052$
0.939116998
\( \frac{4956477625}{941192} \)
\( \bigl[a\) , \( -a + 1\) , \( 0\) , \( 17047 a - 63784\) , \( -1874592 a + 7014081\bigr] \)
${y}^2+a{x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(17047a-63784\right){x}-1874592a+7014081$
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Pari/GP
SageMath
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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.