Cremona's table of elliptic curves

30256 = 2⁴ · 31 · 61

Field	Data	Notes
Atkin-Lehner	2+ 31- 61-	Signs for the Atkin-Lehner involutions
Class	30256d	Isogeny class
Conductor	30256	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	7680	Modular degree for the optimal curve
Δ	-60027904 = -1 · 210 · 312 · 61	Discriminant
Eigenvalues	2+ -2 -1  3 -3  5  8  0	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-56,388]	[a1,a2,a3,a4,a6]
Generators	[16:62:1]	Generators of the group modulo torsion
j	-19307236/58621	j-invariant
L	4.1498552184747	L(r)(E,1)/r!
Ω	1.7358946407267	Real period
R	0.59765367106865	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	15128b1 121024w1	Quadratic twists by: -4 8

Hecke Eigenvalues for elliptic curve 30256d1

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

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Quadratic twists for elliptic curve 30256d1

-4	8
15128b1	121024w1

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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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