Cremona's table of elliptic curves

20535 = 3 · 5 · 37²

Field	Data	Notes
Atkin-Lehner	3+ 5+ 37+	Signs for the Atkin-Lehner involutions
Class	20535a	Isogeny class
Conductor	20535	Conductor
∏ cp	16	Product of Tamagawa factors cp
Δ	577288442025 = 32 · 52 · 376	Discriminant
Eigenvalues	1 3+ 5+  0 -4  2 -2 -4	Hecke eigenvalues for primes up to 20
Equation	[1,1,0,-6873,213408]	[a1,a2,a3,a4,a6]
Generators	[-48:684:1]	Generators of the group modulo torsion
j	13997521/225	j-invariant
L	3.8369157426523	L(r)(E,1)/r!
Ω	0.92103088710513	Real period
R	4.1658925844626	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	61605k2 102675s2 15a3	Quadratic twists by: -3 5 37

Hecke Eigenvalues for elliptic curve 20535a2

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

---

Quadratic twists for elliptic curve 20535a2

-3	5	37
61605k2	102675s2	15a3

---

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