Cremona's table of elliptic curves

9945 = 3² · 5 · 13 · 17

Field	Data	Notes
Atkin-Lehner	3+ 5- 13+ 17+	Signs for the Atkin-Lehner involutions
Class	9945c	Isogeny class
Conductor	9945	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	2048	Modular degree for the optimal curve
Δ	-6593535 = -1 · 33 · 5 · 132 · 172	Discriminant
Eigenvalues	1 3+ 5-  4 -2 13+ 17+  4	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,36,83]	[a1,a2,a3,a4,a6]
j	188132517/244205	j-invariant
L	3.1921863091338	L(r)(E,1)/r!
Ω	1.5960931545669	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	9945a1 49725d1 129285e1	Quadratic twists by: -3 5 13

Hecke Eigenvalues for elliptic curve 9945c1

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

---

Quadratic twists for elliptic curve 9945c1

-3	5	13
9945a1	49725d1	129285e1

---

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