Cremona's table of elliptic curves

20286 = 2 · 3² · 7² · 23

Field	Data	Notes
Atkin-Lehner	2- 3+ 7- 23+	Signs for the Atkin-Lehner involutions
Class	20286bl	Isogeny class
Conductor	20286	Conductor
∏ cp	116	Product of Tamagawa factors cp
deg	51968	Modular degree for the optimal curve
Δ	-114355114868736 = -1 · 229 · 33 · 73 · 23	Discriminant
Eigenvalues	2- 3+  1 7-  0 -3  2  4	Hecke eigenvalues for primes up to 20
Equation	[1,-1,1,10438,307577]	[a1,a2,a3,a4,a6]
Generators	[-15:391:1]	Generators of the group modulo torsion
j	13581780628779/12348030976	j-invariant
L	8.4372014007261	L(r)(E,1)/r!
Ω	0.38638357131849	Real period
R	0.18824427391063	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	20286l1 20286bn1	Quadratic twists by: -3 -7

Hecke Eigenvalues for elliptic curve 20286bl1

a2	a3	a5	a7	a11	a13	a17	a19	a23	a29	a31	a37	a41	a43	a47	a53	a59	a61	a67	a71	a73	a79	a83	a89	a97
-	+	1	-	0	-3	2	4	+	1	-6	-1	3	-7	-9	-4	-14	4	12	-16	4	-2	0	6	17

---

Quadratic twists for elliptic curve 20286bl1

-3	-7
20286l1	20286bn1

---

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
Back to Tables and computations