Minimal Weierstrass equation
\(y^2=x^3+x^2-277856x+35917044\)
Mordell-Weil group structure
\(\Z^2 \times \Z/{2}\Z\)
Infinite order Mordell-Weil generators and heights
| \(P\) | = | \( \left(-158, 8712\right) \) | \( \left(84, 3630\right) \) |
| \(\hat{h}(P)\) | ≈ | $1.9612825180260193933028306702$ | $2.3264465002272041741203840977$ |
Torsion generators
\( \left(139, 0\right) \)
Integral points
\((-158,\pm 8712)\), \((84,\pm 3630)\), \( \left(139, 0\right) \), \((514,\pm 5400)\), \((2674,\pm 135720)\), \((4132,\pm 263538)\)
Invariants
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sage: E.conductor().factor()
gp: ellglobalred(E)[1]
magma: Conductor(E);
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| Conductor: | \( 493680 \) | = | \(2^{4} \cdot 3 \cdot 5 \cdot 11^{2} \cdot 17\) |
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sage: E.discriminant().factor()
gp: E.disc
magma: Discriminant(E);
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| Discriminant: | \(812733637417574400 \) | = | \(2^{13} \cdot 3^{2} \cdot 5^{2} \cdot 11^{10} \cdot 17 \) |
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sage: E.j_invariant().factor()
gp: E.j
magma: jInvariant(E);
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| j-invariant: | \( \frac{326940373369}{112003650} \) | = | \(2^{-1} \cdot 3^{-2} \cdot 5^{-2} \cdot 11^{-4} \cdot 17^{-1} \cdot 83^{6}\) |
| Endomorphism ring: | \(\Z\) | ||
| Geometric endomorphism ring: | \(\Z\) | (no potential complex multiplication) | |
| Sato-Tate group: | $\mathrm{SU}(2)$ | ||
BSD invariants
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sage: E.rank()
magma: Rank(E);
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| Analytic rank: | \(2\) | ||
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sage: E.regulator()
magma: Regulator(E);
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| Regulator: | \(4.4232944864523886449781222850\) | ||
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sage: E.period_lattice().omega()
gp: E.omega[1]
magma: RealPeriod(E);
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| Real period: | \(0.25981319909469697692229889787\) | ||
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sage: E.tamagawa_numbers()
gp: gr=ellglobalred(E); [[gr[4][i,1],gr[5][i][4]] | i<-[1..#gr[4][,1]]]
magma: TamagawaNumbers(E);
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| Tamagawa product: | \( 64 \) = \( 2^{2}\cdot2\cdot2\cdot2^{2}\cdot1 \) | ||
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sage: E.torsion_order()
gp: elltors(E)[1]
magma: Order(TorsionSubgroup(E));
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| Torsion order: | \(2\) | ||
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sage: E.sha().an_numerical()
magma: MordellWeilShaInformation(E);
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| Analytic order of Ш: | \(1\) (rounded) | ||
Modular invariants
Modular form 493680.2.a.eg
For more coefficients, see the Downloads section to the right.
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sage: E.modular_degree()
magma: ModularDegree(E);
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| Modular degree: | 5898240 | ||
| \( \Gamma_0(N) \)-optimal: | unknown* (one of 2 curves in this isogeny class which might be optimal) | ||
| Manin constant: | 1 (conditional*) | ||
Special L-value
\( L^{(2)}(E,1)/2! \) ≈ \( 18.387684657010077935154480613460072275 \)
Local data
This elliptic curve is not semistable. There are 5 primes of bad reduction:
| prime | Tamagawa number | Kodaira symbol | Reduction type | Root number | ord(\(N\)) | ord(\(\Delta\)) | ord\((j)_{-}\) |
|---|---|---|---|---|---|---|---|
| \(2\) | \(4\) | \(I_5^{*}\) | Additive | -1 | 4 | 13 | 1 |
| \(3\) | \(2\) | \(I_{2}\) | Split multiplicative | -1 | 1 | 2 | 2 |
| \(5\) | \(2\) | \(I_{2}\) | Non-split multiplicative | 1 | 1 | 2 | 2 |
| \(11\) | \(4\) | \(I_4^{*}\) | Additive | -1 | 2 | 10 | 4 |
| \(17\) | \(1\) | \(I_{1}\) | Non-split multiplicative | 1 | 1 | 1 | 1 |
Galois representations
The image of the 2-adic representation attached to this elliptic curve is the subgroup of $\GL(2,\Z_2)$ with Rouse label X6.
This subgroup is the pull-back of the subgroup of $\GL(2,\Z_2/2^1\Z_2)$ generated by $\left(\begin{array}{rr} 1 & 1 \\ 0 & 1 \end{array}\right)$ and has index 3.
The mod \( p \) Galois representation has maximal image \(\GL(2,\F_p)\) for all primes \( p \) except those listed.
| prime | Image of Galois representation |
|---|---|
| \(2\) | B |
$p$-adic data
$p$-adic regulators
\(p\)-adic regulators are not yet computed for curves that are not \(\Gamma_0\)-optimal.
No Iwasawa invariant data is available for this curve.
Isogenies
This curve has non-trivial cyclic isogenies of degree \(d\) for \(d=\)
2.
Its isogeny class 493680eg
consists of 2 curves linked by isogenies of
degree 2.