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
53.5-a1
53.5-a
$2$
$3$
\(\Q(\zeta_{13})^+\)
$6$
$[6, 0]$
53.5
\( 53 \)
\( -53 \)
$75.80303$
$(-a^5+a^4+3a^3-3a^2+2)$
$1$
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
$3$
3B
$1$
\( 1 \)
$0.003837573$
$60162.44104$
2.27340
\( \frac{167274219}{53} a^{5} - \frac{608694462}{53} a^{4} + \frac{282958399}{53} a^{3} + \frac{924381730}{53} a^{2} - \frac{673826397}{53} a - \frac{212698186}{53} \)
\( \bigl[a^{2} + a - 1\) , \( -a^{5} - a^{4} + 4 a^{3} + 4 a^{2} - a - 3\) , \( a^{5} - 4 a^{3} + a^{2} + 3 a - 1\) , \( -5 a^{5} - 3 a^{4} + 21 a^{3} + 12 a^{2} - 14 a - 4\) , \( -4 a^{5} - 2 a^{4} + 15 a^{3} + 9 a^{2} - 7 a - 2\bigr] \)
${y}^2+\left(a^{2}+a-1\right){x}{y}+\left(a^{5}-4a^{3}+a^{2}+3a-1\right){y}={x}^{3}+\left(-a^{5}-a^{4}+4a^{3}+4a^{2}-a-3\right){x}^{2}+\left(-5a^{5}-3a^{4}+21a^{3}+12a^{2}-14a-4\right){x}-4a^{5}-2a^{4}+15a^{3}+9a^{2}-7a-2$
53.5-a2
53.5-a
$2$
$3$
\(\Q(\zeta_{13})^+\)
$6$
$[6, 0]$
53.5
\( 53 \)
\( - 53^{3} \)
$75.80303$
$(-a^5+a^4+3a^3-3a^2+2)$
$1$
$\mathsf{trivial}$
$\textsf{no}$
$\mathrm{SU}(2)$
✓
$3$
3B
$1$
\( 3 \)
$0.001279191$
$60162.44104$
2.27340
\( \frac{25098319588}{148877} a^{5} - \frac{53595700543}{148877} a^{4} - \frac{64555100005}{148877} a^{3} + \frac{173614863960}{148877} a^{2} - \frac{46974822956}{148877} a - \frac{21924763841}{148877} \)
\( \bigl[a^{5} + a^{4} - 5 a^{3} - 3 a^{2} + 6 a\) , \( -a^{5} + a^{4} + 5 a^{3} - 5 a^{2} - 6 a + 5\) , \( a^{2} + a - 1\) , \( -3 a^{5} + 2 a^{4} + 15 a^{3} - 10 a^{2} - 17 a + 12\) , \( -2 a^{5} + 3 a^{4} + 10 a^{3} - 13 a^{2} - 12 a + 12\bigr] \)
${y}^2+\left(a^{5}+a^{4}-5a^{3}-3a^{2}+6a\right){x}{y}+\left(a^{2}+a-1\right){y}={x}^{3}+\left(-a^{5}+a^{4}+5a^{3}-5a^{2}-6a+5\right){x}^{2}+\left(-3a^{5}+2a^{4}+15a^{3}-10a^{2}-17a+12\right){x}-2a^{5}+3a^{4}+10a^{3}-13a^{2}-12a+12$
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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.