Cremona's table of elliptic curves

20400 = 2⁴ · 3 · 5² · 17

Field	Data	Notes
Atkin-Lehner	2- 3+ 5+ 17-	Signs for the Atkin-Lehner involutions
Class	20400cd	Isogeny class
Conductor	20400	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	60480	Modular degree for the optimal curve
Δ	-261120000000000 = -1 · 219 · 3 · 510 · 17	Discriminant
Eigenvalues	2- 3+ 5+  0 -6 -2 17- -4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,9792,678912]	[a1,a2,a3,a4,a6]
Generators	[-32:576:1]	Generators of the group modulo torsion
j	2595575/6528	j-invariant
L	3.5907009486949	L(r)(E,1)/r!
Ω	0.38601401705211	Real period
R	2.325499068736	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	2550bc1 81600in1 61200em1 20400do1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 20400cd1

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
-	+	+	0	-6	-2	-	-4	5	0	2	3	5	-2	0	1	3	5	2	-5	0	8	1	14	16

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Quadratic twists for elliptic curve 20400cd1

-4	8	-3	5
2550bc1	81600in1	61200em1	20400do1

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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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