Cremona's table of elliptic curves

19800 = 2³ · 3² · 5² · 11

Field	Data	Notes
Atkin-Lehner	2- 3+ 5+ 11+	Signs for the Atkin-Lehner involutions
Class	19800x	Isogeny class
Conductor	19800	Conductor
∏ cp	16	Product of Tamagawa factors cp
Δ	38106288000000 = 210 · 39 · 56 · 112	Discriminant
Eigenvalues	2- 3+ 5+  2 11+  6 -6 -2	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-16875,789750]	[a1,a2,a3,a4,a6]
j	1687500/121	j-invariant
L	2.5413082882016	L(r)(E,1)/r!
Ω	0.6353270720504	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	39600c2 19800a2 792a2	Quadratic twists by: -4 -3 5

Hecke Eigenvalues for elliptic curve 19800x2

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

---

Quadratic twists for elliptic curve 19800x2

-4	-3	5
39600c2	19800a2	792a2

---

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