Cremona's table of elliptic curves

20355 = 3 · 5 · 23 · 59

Field	Data	Notes
Atkin-Lehner	3- 5- 23+ 59-	Signs for the Atkin-Lehner involutions
Class	20355f	Isogeny class
Conductor	20355	Conductor
∏ cp	378	Product of Tamagawa factors cp
deg	447552	Modular degree for the optimal curve
Δ	464077517220703125 = 37 · 59 · 232 · 593	Discriminant
Eigenvalues	-2 3- 5- -2 -5 -3 -5 -7	Hecke eigenvalues for primes up to 20
Equation	[0,1,1,-323620,-62932244]	[a1,a2,a3,a4,a6]
Generators	[-412:796:1] [-365:2587:1]	Generators of the group modulo torsion
j	3748272138577458712576/464077517220703125	j-invariant
L	4.5850080834071	L(r)(E,1)/r!
Ω	0.20179220933686	Real period
R	0.06010961004972	Regulator
r	2	Rank of the group of rational points
S	0.99999999999955	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	61065i1 101775g1	Quadratic twists by: -3 5

Hecke Eigenvalues for elliptic curve 20355f1

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	-	-	-2	-5	-3	-5	-7	+	-4	-2	-1	-4	1	0	-3	-	6	-13	2	1	13	-6	-13	2

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Quadratic twists for elliptic curve 20355f1

-3	5
61065i1	101775g1

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Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
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