Cremona's table of elliptic curves

21240 = 2³ · 3² · 5 · 59

Field	Data	Notes
Atkin-Lehner	2+ 3+ 5- 59-	Signs for the Atkin-Lehner involutions
Class	21240a	Isogeny class
Conductor	21240	Conductor
∏ cp	12	Product of Tamagawa factors cp
deg	6912	Modular degree for the optimal curve
Δ	-203904000 = -1 · 210 · 33 · 53 · 59	Discriminant
Eigenvalues	2+ 3+ 5-  3  0 -3 -1  8	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,93,-594]	[a1,a2,a3,a4,a6]
Generators	[7:20:1]	Generators of the group modulo torsion
j	3217428/7375	j-invariant
L	6.2890274128804	L(r)(E,1)/r!
Ω	0.92377834159425	Real period
R	0.56732832341097	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	42480b1 21240g1 106200y1	Quadratic twists by: -4 -3 5

Hecke Eigenvalues for elliptic curve 21240a1

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	0	-3	-1	8	-5	-8	7	-10	-8	8	3	-11	-	-2	8	-5	-11	-8	-11	-5	-10

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Quadratic twists for elliptic curve 21240a1

-4	-3	5
42480b1	21240g1	106200y1

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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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