Cremona's table of elliptic curves

42320 = 2⁴ · 5 · 23²

Field	Data	Notes
Atkin-Lehner	2+ 5- 23-	Signs for the Atkin-Lehner involutions
Class	42320i	Isogeny class
Conductor	42320	Conductor
∏ cp	21	Product of Tamagawa factors cp
deg	865536	Modular degree for the optimal curve
Δ	1566219705620000000 = 28 · 57 · 238	Discriminant
Eigenvalues	2+ -2 5- -2  5  2 -2 -1	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-2222505,-1274618525]	[a1,a2,a3,a4,a6]
Generators	[-882:529:1]	Generators of the group modulo torsion
j	60560505856/78125	j-invariant
L	4.3521838071552	L(r)(E,1)/r!
Ω	0.12365807868354	Real period
R	1.6759669094491	Regulator
r	1	Rank of the group of rational points
S	1.0000000000005	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	21160i1 42320e1	Quadratic twists by: -4 -23

Hecke Eigenvalues for elliptic curve 42320i1

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	-	-2	5	2	-2	-1	-	2	7	2	5	-8	4	12	-4	1	-8	-5	-4	-7	-12	-14	4

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Quadratic twists for elliptic curve 42320i1

-4	-23
21160i1	42320e1

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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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