Cremona's table of elliptic curves

31312 = 2⁴ · 19 · 103

Field	Data	Notes
Atkin-Lehner	2+ 19- 103+	Signs for the Atkin-Lehner involutions
Class	31312f	Isogeny class
Conductor	31312	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	3840	Modular degree for the optimal curve
Δ	500992 = 28 · 19 · 103	Discriminant
Eigenvalues	2+ -1 -4 -1  2 -2 -6 19-	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-20,16]	[a1,a2,a3,a4,a6]
Generators	[-4:4:1] [0:4:1]	Generators of the group modulo torsion
j	3631696/1957	j-invariant
L	5.3828424412106	L(r)(E,1)/r!
Ω	2.5694632773082	Real period
R	1.0474643651748	Regulator
r	2	Rank of the group of rational points
S	0.99999999999989	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	15656c1 125248x1	Quadratic twists by: -4 8

Hecke Eigenvalues for elliptic curve 31312f1

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
+	-1	-4	-1	2	-2	-6	-	3	-6	3	-5	-10	-6	6	3	10	1	1	13	0	-8	-15	-5	-4

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Quadratic twists for elliptic curve 31312f1

-4	8
15656c1	125248x1

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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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