Cremona's table of elliptic curves

320 = 2⁶ · 5

Field	Data	Notes
Atkin-Lehner	2+ 5-	Signs for the Atkin-Lehner involutions
Class	320c	Isogeny class
Conductor	320	Conductor
∏ cp	12	Product of Tamagawa factors cp
Δ	-256000000 = -1 · 214 · 56	Discriminant
Eigenvalues	2+  2 5-  2  0 -2 -6  4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-145,-975]	[a1,a2,a3,a4,a6]
j	-20720464/15625	j-invariant
L	1.997134815494	L(r)(E,1)/r!
Ω	0.66571160516467	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	320f4 20a3 2880i4 1600g4	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 320c4

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

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Quadratic twists for elliptic curve 320c4

-4	8	-3	5	-7	-11	13	17	-19
320f4	20a3	2880i4	1600g4	15680s4	38720bm4	54080o4	92480x4	115520be4

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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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