Cremona's table of elliptic curves

9975 = 3 · 5² · 7 · 19

Field	Data	Notes
Atkin-Lehner	3+ 5+ 7+ 19+	Signs for the Atkin-Lehner involutions
Class	9975a	Isogeny class
Conductor	9975	Conductor
∏ cp	32	Product of Tamagawa factors cp
Δ	561245712890625 = 32 · 510 · 72 · 194	Discriminant
Eigenvalues	1 3+ 5+ 7+ -4  2 -2 19+	Hecke eigenvalues for primes up to 20
Equation	[1,1,0,-63500,-6079125]	[a1,a2,a3,a4,a6]
Generators	[52180:1383285:64]	Generators of the group modulo torsion
j	1812322775712961/35919725625	j-invariant
L	3.8671294315315	L(r)(E,1)/r!
Ω	0.30111215903232	Real period
R	6.4214102877135	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	29925r3 1995h3 69825bw3	Quadratic twists by: -3 5 -7

Hecke Eigenvalues for elliptic curve 9975a3

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

---

Quadratic twists for elliptic curve 9975a3

-3	5	-7
29925r3	1995h3	69825bw3

---

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