Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
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\(y^2=x^3+5685x-68434\)
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(homogenize, simplify) |
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\(y^2z=x^3+5685xz^2-68434z^3\)
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(dehomogenize, simplify) |
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\(y^2=x^3+5685x-68434\)
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(homogenize, minimize) |
Mordell-Weil group structure
\(\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| \( \left(17, 182\right) \) | $0.43803156805097614228997714439$ | $\infty$ |
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| \([17:182:1]\) | $0.43803156805097614228997714439$ | $\infty$ |
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| \( \left(17, 182\right) \) | $0.43803156805097614228997714439$ | $\infty$ |
Integral points
\((17,\pm 182)\), \((290,\pm 5096)\)
\([17:\pm 182:1]\), \([290:\pm 5096:1]\)
\((17,\pm 182)\), \((290,\pm 5096)\)
Invariants
| Conductor: | $N$ | = | \( 26208 \) | = | $2^{5} \cdot 3^{2} \cdot 7 \cdot 13$ |
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| Minimal Discriminant: | $\Delta$ | = | $-13782174561792$ | = | $-1 \cdot 2^{9} \cdot 3^{6} \cdot 7^{5} \cdot 13^{3} $ |
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| j-invariant: | $j$ | = | \( \frac{54439939000}{36924979} \) | = | $2^{3} \cdot 5^{3} \cdot 7^{-5} \cdot 13^{-3} \cdot 379^{3}$ |
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| Endomorphism ring: | $\mathrm{End}(E)$ | = | $\Z$ | |||
| Geometric endomorphism ring: | $\mathrm{End}(E_{\overline{\Q}})$ | = | \(\Z\) (no potential complex multiplication) |
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| Sato-Tate group: | $\mathrm{ST}(E)$ | = | $\mathrm{SU}(2)$ | |||
| Faltings height: | $h_{\mathrm{Faltings}}$ | ≈ | $1.2098689133057455363580746776$ |
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| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $0.14070238355173170859752796805$ |
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| $abc$ quality: | $Q$ | ≈ | $0.9386418530682312$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $3.690881330762735$ | |||
| Intrinsic torsion order: | $\#E(\mathbb Q)_\text{tors}^\text{is}$ | = | $1$ | |||
BSD invariants
| Analytic rank: | $r_{\mathrm{an}}$ | = | $ 1$ |
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| Mordell-Weil rank: | $r$ | = | $ 1$ |
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| Regulator: | $\mathrm{Reg}(E/\Q)$ | ≈ | $0.43803156805097614228997714439$ |
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| Real period: | $\Omega$ | ≈ | $0.40028084478091812443967007542$ |
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| Tamagawa product: | $\prod_{p}c_p$ | = | $ 30 $ = $ 2\cdot1\cdot5\cdot3 $ |
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| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $1$ |
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| Special value: | $ L'(E,1)$ | ≈ | $5.2600693830046486748229642619 $ |
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| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | ≈ | $1$ (rounded) |
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BSD formula
$$\begin{aligned} 5.260069383 \approx L'(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.400281 \cdot 0.438032 \cdot 30}{1^2} \\ & \approx 5.260069383\end{aligned}$$
Modular invariants
For more coefficients, see the Downloads section to the right.
| Modular degree: | 43200 |
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| $ \Gamma_0(N) $-optimal: | yes | |
| Manin constant: | 1 |
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Local data at primes of bad reduction
This elliptic curve is not semistable. There are 4 primes $p$ of bad reduction:
| $p$ | Tamagawa number | Kodaira symbol | Reduction type | Root number | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $2$ | $2$ | $I_0^{*}$ | additive | -1 | 5 | 9 | 0 |
| $3$ | $1$ | $I_0^{*}$ | additive | -1 | 2 | 6 | 0 |
| $7$ | $5$ | $I_{5}$ | split multiplicative | -1 | 1 | 5 | 5 |
| $13$ | $3$ | $I_{3}$ | split multiplicative | -1 | 1 | 3 | 3 |
Galois representations
The $\ell$-adic Galois representation has maximal image for all primes $\ell$.
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 728 = 2^{3} \cdot 7 \cdot 13 \), index $2$, genus $0$, and generators
$\left(\begin{array}{rr} 183 & 2 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 561 & 2 \\ 561 & 3 \end{array}\right),\left(\begin{array}{rr} 521 & 2 \\ 521 & 3 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 2 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 2 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 727 & 2 \\ 726 & 3 \end{array}\right),\left(\begin{array}{rr} 1 & 1 \\ 727 & 0 \end{array}\right),\left(\begin{array}{rr} 365 & 2 \\ 365 & 3 \end{array}\right)$.
The torsion field $K:=\Q(E[728])$ is a degree-$40577531904$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/728\Z)$.
The table below list all primes $\ell$ for which the Serre invariants associated to the mod-$\ell$ Galois representation are exceptional.
| $\ell$ | Reduction type | Serre weight | Serre conductor |
|---|---|---|---|
| $2$ | additive | $4$ | \( 819 = 3^{2} \cdot 7 \cdot 13 \) |
| $3$ | additive | $6$ | \( 224 = 2^{5} \cdot 7 \) |
| $5$ | good | $2$ | \( 3744 = 2^{5} \cdot 3^{2} \cdot 13 \) |
| $7$ | split multiplicative | $8$ | \( 3744 = 2^{5} \cdot 3^{2} \cdot 13 \) |
| $13$ | split multiplicative | $14$ | \( 2016 = 2^{5} \cdot 3^{2} \cdot 7 \) |
Isogenies
This curve has no rational isogenies. Its isogeny class 26208.w consists of this curve only.
Twists
The minimal quadratic twist of this elliptic curve is 2912.a1, its twist by $-3$.
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 $E(\Q)_{\rm tors}$ (which is trivial) are as follows:
| $[K:\Q]$ | $K$ | $E(K)_{\rm tors}$ | Base change curve |
|---|---|---|---|
| $3$ | 3.1.728.1 | \(\Z/2\Z\) | not in database |
| $6$ | 6.0.385828352.1 | \(\Z/2\Z \oplus \Z/2\Z\) | not in database |
| $8$ | 8.2.344128684032.17 | \(\Z/3\Z\) | not in database |
| $12$ | deg 12 | \(\Z/4\Z\) | 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.
Iwasawa invariants
| $p$ | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | 41 | 43 | 47 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reduction type | add | add | ss | split | ord | split | ord | ord | ord | ord | ord | ord | ord | ord | ord |
| $\lambda$-invariant(s) | - | - | 5,5 | 4 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| $\mu$-invariant(s) | - | - | 0,0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
An entry - indicates that the invariants are not computed because the reduction is additive.
$p$-adic regulators
Note: $p$-adic regulator data only exists for primes $p\ge 5$ of good ordinary reduction.