Cremona's table of elliptic curves

2678 = 2 · 13 · 103

Field	Data	Notes
Atkin-Lehner	2+ 13- 103+	Signs for the Atkin-Lehner involutions
Class	2678c	Isogeny class
Conductor	2678	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	1104	Modular degree for the optimal curve
Δ	-1103336 = -1 · 23 · 13 · 1032	Discriminant
Eigenvalues	2+  3  1  5 -4 13- -3  4	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,26,-4]	[a1,a2,a3,a4,a6]
j	1902014919/1103336	j-invariant
L	3.3109190772585	L(r)(E,1)/r!
Ω	1.6554595386292	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	21424w1 85696i1 24102bb1 66950bb1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 2678c1

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
+	3	1	5	-4	-	-3	4	6	-6	0	-7	2	9	3	-4	0	4	10	-7	-14	0	12	-18	2

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Quadratic twists for elliptic curve 2678c1

-4	8	-3	5	13
21424w1	85696i1	24102bb1	66950bb1	34814n1

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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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