Cremona's table of elliptic curves

19992 = 2³ · 3 · 7² · 17

Field	Data	Notes
Atkin-Lehner	2+ 3+ 7+ 17-	Signs for the Atkin-Lehner involutions
Class	19992a	Isogeny class
Conductor	19992	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	53760	Modular degree for the optimal curve
Δ	24385938361344 = 210 · 35 · 78 · 17	Discriminant
Eigenvalues	2+ 3+ -3 7+ -4  3 17-  4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-9032,-226596]	[a1,a2,a3,a4,a6]
j	13805092/4131	j-invariant
L	1.0020861803053	L(r)(E,1)/r!
Ω	0.50104309015267	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	39984k1 59976bc1 19992r1	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 19992a1

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
+	+	-3	+	-4	3	-	4	6	3	-7	-4	-1	-4	9	4	15	2	-6	-6	4	4	9	-16	8

---

Quadratic twists for elliptic curve 19992a1

-4	-3	-7
39984k1	59976bc1	19992r1

---

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