Minimal Weierstrass equation
\(y^2=x^3+x^2+3523480x-4088181132\)
Mordell-Weil group structure
\(\Z\times \Z/{4}\Z\)
Infinite order Mordell-Weil generator and height
| \(P\) | = | \( \left(1228, 45738\right) \) |
| \(\hat{h}(P)\) | ≈ | $1.1817711413920403790760865652$ |
Torsion generators
\( \left(3406, 217800\right) \)
Integral points
\( \left(931, 0\right) \), \((1228,\pm 45738)\), \((1606,\pm 75600)\), \((3406,\pm 217800)\), \((5287,\pm 402930)\), \((10006,\pm 1016400)\), \((21556,\pm 3176250)\), \((100206,\pm 31726200)\)
Invariants
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sage: E.conductor().factor()
gp: ellglobalred(E)[1]
magma: Conductor(E);
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| Conductor: | \( 203280 \) | = | \(2^{4} \cdot 3 \cdot 5 \cdot 7 \cdot 11^{2}\) |
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sage: E.discriminant().factor()
gp: E.disc
magma: Discriminant(E);
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| Discriminant: | \(-10023857788190400000000 \) | = | \(-1 \cdot 2^{12} \cdot 3^{8} \cdot 5^{8} \cdot 7^{2} \cdot 11^{7} \) |
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sage: E.j_invariant().factor()
gp: E.j
magma: jInvariant(E);
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| j-invariant: | \( \frac{666688497209279}{1381398046875} \) | = | \(3^{-8} \cdot 5^{-8} \cdot 7^{-2} \cdot 11^{-1} \cdot 87359^{3}\) |
| 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: | \(1\) | ||
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sage: E.regulator()
magma: Regulator(E);
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| Regulator: | \(1.1817711413920403790760865652\) | ||
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sage: E.period_lattice().omega()
gp: E.omega[1]
magma: RealPeriod(E);
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| Real period: | \(0.067084242685242317038958942307\) | ||
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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: | \( 2048 \) = \( 2^{2}\cdot2^{3}\cdot2^{3}\cdot2\cdot2^{2} \) | ||
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sage: E.torsion_order()
gp: elltors(E)[1]
magma: Order(TorsionSubgroup(E));
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| Torsion order: | \(4\) | ||
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sage: E.sha().an_numerical()
magma: MordellWeilShaInformation(E);
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| Analytic order of Ш: | \(1\) (exact) | ||
Modular invariants
Modular form 203280.2.a.gb
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: | 15728640 | ||
| \( \Gamma_0(N) \)-optimal: | no | ||
| Manin constant: | 1 | ||
Special L-value
\( L'(E,1) \) ≈ \( 10.147612422087609446524011006619316278 \)
Local data
This elliptic curve is semistable. There are 5 primes of bad reduction:
| prime | Tamagawa number | Kodaira symbol | Reduction type | Root number | ord(\(N\)) | ord(\(\Delta\)) | ord\((j)_{-}\) |
|---|---|---|---|---|---|---|---|
| \(2\) | \(4\) | \(I_4^{*}\) | Additive | -1 | 4 | 12 | 0 |
| \(3\) | \(8\) | \(I_{8}\) | Split multiplicative | -1 | 1 | 8 | 8 |
| \(5\) | \(8\) | \(I_{8}\) | Split multiplicative | -1 | 1 | 8 | 8 |
| \(7\) | \(2\) | \(I_{2}\) | Non-split multiplicative | 1 | 1 | 2 | 2 |
| \(11\) | \(4\) | \(I_1^{*}\) | Additive | -1 | 2 | 7 | 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 X36h.
This subgroup is the pull-back of the subgroup of $\GL(2,\Z_2/2^3\Z_2)$ generated by $\left(\begin{array}{rr} 7 & 7 \\ 0 & 7 \end{array}\right),\left(\begin{array}{rr} 7 & 0 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 5 & 0 \\ 0 & 5 \end{array}\right),\left(\begin{array}{rr} 5 & 0 \\ 0 & 1 \end{array}\right)$ and has index 24.
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, 4 and 8.
Its isogeny class 203280.gb
consists of 4 curves linked by isogenies of
degrees dividing 8.
Growth of torsion in number fields
The number fields $K$ of degree less than 24 such that $E(K)_{\rm tors}$ is strictly larger than $E(\Q)_{\rm tors}$ $\cong \Z/{4}\Z$ are as follows:
| $[K:\Q]$ | $K$ | $E(K)_{\rm tors}$ | Base change curve |
|---|---|---|---|
| $2$ | \(\Q(\sqrt{-11}) \) | \(\Z/2\Z \times \Z/4\Z\) | Not in database |
| $4$ | 4.2.340736.1 | \(\Z/8\Z\) | Not in database |
| $4$ | \(\Q(\sqrt{-11}, \sqrt{-14})\) | \(\Z/2\Z \times \Z/8\Z\) | Not in database |
| $8$ | 8.0.17422409568256.19 | \(\Z/4\Z \times \Z/4\Z\) | Not in database |
| $8$ | 8.0.116101021696.2 | \(\Z/2\Z \times \Z/8\Z\) | Not in database |
| $8$ | Deg 8 | \(\Z/12\Z\) | Not in database |
| $16$ | Deg 16 | \(\Z/4\Z \times \Z/8\Z\) | Not in database |
| $16$ | Deg 16 | \(\Z/16\Z\) | Not in database |
| $16$ | Deg 16 | \(\Z/2\Z \times \Z/16\Z\) | Not in database |
| $16$ | Deg 16 | \(\Z/2\Z \times \Z/16\Z\) | Not in database |
| $16$ | Deg 16 | \(\Z/2\Z \times \Z/12\Z\) | Not in database |
We only show fields where the torsion growth is primitive. For fields not in the database, click on the degree shown to reveal the defining polynomial.