Cremona's table of elliptic curves

40248 = 2³ · 3² · 13 · 43

Field	Data	Notes
Atkin-Lehner	2+ 3- 13- 43+	Signs for the Atkin-Lehner involutions
Class	40248o	Isogeny class
Conductor	40248	Conductor
∏ cp	16	Product of Tamagawa factors cp
Δ	298598188741632 = 210 · 38 · 13 · 434	Discriminant
Eigenvalues	2+ 3- -2  4 -4 13- -2  0	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-28011,1601494]	[a1,a2,a3,a4,a6]
Generators	[-25:1512:1]	Generators of the group modulo torsion
j	3255982543012/399999717	j-invariant
L	5.3581613959815	L(r)(E,1)/r!
Ω	0.52723746970002	Real period
R	2.5406774479786	Regulator
r	1	Rank of the group of rational points
S	0.9999999999994	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	80496u3 13416i3	Quadratic twists by: -4 -3

Hecke Eigenvalues for elliptic curve 40248o3

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
+	-	-2	4	-4	-	-2	0	0	-6	8	2	-10	+	8	10	12	-10	4	-12	-10	8	12	-14	2

---

Quadratic twists for elliptic curve 40248o3

-4	-3
80496u3	13416i3

---

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