Cremona's table of elliptic curves

320 = 2⁶ · 5

Field	Data	Notes
Atkin-Lehner	2+ 5+	Signs for the Atkin-Lehner involutions
Class	320b	Isogeny class
Conductor	320	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	16	Modular degree for the optimal curve
Δ	5120 = 210 · 5	Discriminant
Eigenvalues	2+  0 5+ -4 -4  2  2 -4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-8,8]	[a1,a2,a3,a4,a6]
Generators	[-2:4:1]	Generators of the group modulo torsion
j	55296/5	j-invariant
L	1.5161085153166	L(r)(E,1)/r!
Ω	4.1985525041395	Real period
R	0.72220533806443	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	320a1 40a3 2880t1 1600a1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 320b1

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	+	-4	-4	2	2	-4	4	2	-8	-6	-6	8	4	-6	4	2	-8	0	-6	0	16	-6	-14

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Quadratic twists for elliptic curve 320b1

-4	8	-3	5	-7	-11	13	17	-19
320a1	40a3	2880t1	1600a1	15680bm1	38720f1	54080bf1	92480bs1	115520j1

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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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