Cremona's table of elliptic curves

19665 = 3² · 5 · 19 · 23

Field	Data	Notes
Atkin-Lehner	3+ 5+ 19+ 23-	Signs for the Atkin-Lehner involutions
Class	19665a	Isogeny class
Conductor	19665	Conductor
∏ cp	10	Product of Tamagawa factors cp
deg	142560	Modular degree for the optimal curve
Δ	-4344714864230355 = -1 · 39 · 5 · 193 · 235	Discriminant
Eigenvalues	2 3+ 5+  1 -4 -5  6 19+	Hecke eigenvalues for primes up to 20
Equation	[0,0,1,36477,1693163]	[a1,a2,a3,a4,a6]
j	272702901768192/220734383185	j-invariant
L	2.8186526278125	L(r)(E,1)/r!
Ω	0.28186526278125	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	19665g1 98325b1	Quadratic twists by: -3 5

Hecke Eigenvalues for elliptic curve 19665a1

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	+	+	1	-4	-5	6	+	-	-5	-2	-4	-5	3	0	11	-4	10	2	5	6	15	6	10	4

---

Quadratic twists for elliptic curve 19665a1

-3	5
19665g1	98325b1

---

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