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	16	Product of Tamagawa factors cp
Δ	77014138359375 = 32 · 57 · 78 · 19	Discriminant
Eigenvalues	1 3+ 5+ 7+ -4  2 -2 19+	Hecke eigenvalues for primes up to 20
Equation	[1,1,0,-115250,15005625]	[a1,a2,a3,a4,a6]
Generators	[200:-25:1]	Generators of the group modulo torsion
j	10835086336331041/4928904855	j-invariant
L	3.8671294315315	L(r)(E,1)/r!
Ω	0.60222431806463	Real period
R	1.6053525719284	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	29925r4 1995h4 69825bw4	Quadratic twists by: -3 5 -7

Hecke Eigenvalues for elliptic curve 9975a4

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 9975a4

-3	5	-7
29925r4	1995h4	69825bw4

---

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