Cremona's table of elliptic curves

13818 = 2 · 3 · 7² · 47

Field	Data	Notes
Atkin-Lehner	2- 3+ 7- 47-	Signs for the Atkin-Lehner involutions
Class	13818r	Isogeny class
Conductor	13818	Conductor
∏ cp	12	Product of Tamagawa factors cp
Δ	392948601192 = 23 · 33 · 77 · 472	Discriminant
Eigenvalues	2- 3+  0 7-  0 -2 -6  4	Hecke eigenvalues for primes up to 20
Equation	[1,1,1,-395088,-95749431]	[a1,a2,a3,a4,a6]
j	57971836400640625/3340008	j-invariant
L	2.2851111884931	L(r)(E,1)/r!
Ω	0.19042593237442	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	4	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	110544dg2 41454j2 1974l2	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 13818r2

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
-	+	0	-	0	-2	-6	4	6	-6	-2	2	-6	2	-	-6	12	-2	14	12	-8	8	12	6	-2

---

Quadratic twists for elliptic curve 13818r2

-4	-3	-7
110544dg2	41454j2	1974l2

---

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