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	31680ef	Isogeny class
Conductor	31680	Conductor
∏ cp	64	Product of Tamagawa factors cp
Δ	81293414400 = 212 · 38 · 52 · 112	Discriminant
Eigenvalues	2- 3- 5- -4 11- -2  2 -4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-1092,-2176]	[a1,a2,a3,a4,a6]
Generators	[-20:108:1]	Generators of the group modulo torsion
j	48228544/27225	j-invariant
L	4.8282530867045	L(r)(E,1)/r!
Ω	0.89481048825929	Real period
R	1.3489596819816	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	31680do2 15840v1 10560bl2	Quadratic twists by: -4 8 -3

Hecke Eigenvalues for elliptic curve 31680ef2

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

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Quadratic twists for elliptic curve 31680ef2

-4	8	-3
31680do2	15840v1	10560bl2

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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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