Cremona's table of elliptic curves

66248 = 2³ · 7² · 13²

Field	Data	Notes
Atkin-Lehner	2- 7- 13+	Signs for the Atkin-Lehner involutions
Class	66248r	Isogeny class
Conductor	66248	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	322560	Modular degree for the optimal curve
Δ	21815265186407056 = 24 · 710 · 136	Discriminant
Eigenvalues	2-  1 -1 7- -3 13+  5  1	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-135256,-17823779]	[a1,a2,a3,a4,a6]
Generators	[-165:169:1]	Generators of the group modulo torsion
j	12544	j-invariant
L	5.7804787001247	L(r)(E,1)/r!
Ω	0.25020790433378	Real period
R	2.8878377740793	Regulator
r	1	Rank of the group of rational points
S	1.0000000000101	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	66248m1 392b1	Quadratic twists by: -7 13

Hecke Eigenvalues for elliptic curve 66248r1

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	-1	-	-3	+	5	1	-7	2	-5	-3	-2	-4	5	-1	15	5	9	0	7	1	12	7	-2

---

Quadratic twists for elliptic curve 66248r1

-7	13
66248m1	392b1

---

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