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	20355b	Isogeny class
Conductor	20355	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	4736	Modular degree for the optimal curve
Δ	468165 = 3 · 5 · 232 · 59	Discriminant
Eigenvalues	-2 3+ 5+ -2 -1 -5 -7  1	Hecke eigenvalues for primes up to 20
Equation	[0,-1,1,-46,132]	[a1,a2,a3,a4,a6]
Generators	[-6:12:1] [0:11:1]	Generators of the group modulo torsion
j	11000295424/468165	j-invariant
L	2.9481217023246	L(r)(E,1)/r!
Ω	2.929383780549	Real period
R	0.50319827021271	Regulator
r	2	Rank of the group of rational points
S	1.0000000000006	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	61065k1 101775o1	Quadratic twists by: -3 5

Hecke Eigenvalues for elliptic curve 20355b1

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	-1	-5	-7	1	+	4	-2	1	8	7	-12	-9	-	2	13	6	-1	-11	-10	15	-10

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Quadratic twists for elliptic curve 20355b1

-3	5
61065k1	101775o1

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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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