Cremona's table of elliptic curves

31680 = 2⁶ · 3² · 5 · 11

Field	Data	Notes
Atkin-Lehner	2- 3+ 5- 11-	Signs for the Atkin-Lehner involutions
Class	31680cf	Isogeny class
Conductor	31680	Conductor
∏ cp	48	Product of Tamagawa factors cp
deg	331776	Modular degree for the optimal curve
Δ	61739295886540800 = 236 · 33 · 52 · 113	Discriminant
Eigenvalues	2- 3+ 5-  4 11-  4 -6  2	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-100332,2591056]	[a1,a2,a3,a4,a6]
j	15781142246787/8722841600	j-invariant
L	3.6475463355674	L(r)(E,1)/r!
Ω	0.30396219463037	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	31680e1 7920u1 31680cb3	Quadratic twists by: -4 8 -3

Hecke Eigenvalues for elliptic curve 31680cf1

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
-	+	-	4	-	4	-6	2	6	6	-8	-2	-6	-10	6	-6	0	-8	-4	6	14	16	12	0	14

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Quadratic twists for elliptic curve 31680cf1

-4	8	-3
31680e1	7920u1	31680cb3

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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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