Cremona's table of elliptic curves

2256 = 2⁴ · 3 · 47

Field	Data	Notes
Atkin-Lehner	2- 3+ 47+	Signs for the Atkin-Lehner involutions
Class	2256h	Isogeny class
Conductor	2256	Conductor
∏ cp	1	Product of Tamagawa factors cp
deg	1120	Modular degree for the optimal curve
Δ	421023744 = 212 · 37 · 47	Discriminant
Eigenvalues	2- 3+ -3  3  5  2 -6  6	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-197,-339]	[a1,a2,a3,a4,a6]
j	207474688/102789	j-invariant
L	1.3403439482163	L(r)(E,1)/r!
Ω	1.3403439482163	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	141a1 9024bq1 6768t1 56400da1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 2256h1

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	3	5	2	-6	6	-9	1	2	1	6	-2	+	0	12	-2	-2	2	-2	15	4	10	1

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Quadratic twists for elliptic curve 2256h1

-4	8	-3	5	-7	-47
141a1	9024bq1	6768t1	56400da1	110544eh1	106032z1

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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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