Cremona's table of elliptic curves

21756 = 2² · 3 · 7² · 37

Field	Data	Notes
Atkin-Lehner	2- 3- 7- 37-	Signs for the Atkin-Lehner involutions
Class	21756o	Isogeny class
Conductor	21756	Conductor
∏ cp	24	Product of Tamagawa factors cp
Δ	2597599565568 = 28 · 32 · 77 · 372	Discriminant
Eigenvalues	2- 3-  0 7-  0 -4  8 -8	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-17068,849092]	[a1,a2,a3,a4,a6]
Generators	[116:666:1]	Generators of the group modulo torsion
j	18258658000/86247	j-invariant
L	6.1496434432281	L(r)(E,1)/r!
Ω	0.8152014092383	Real period
R	1.2572850859385	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	87024ci2 65268n2 3108b2	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 21756o2

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
-	-	0	-	0	-4	8	-8	-6	2	8	-	-2	10	-8	-10	8	0	12	12	6	-10	12	8	16

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Quadratic twists for elliptic curve 21756o2

-4	-3	-7
87024ci2	65268n2	3108b2

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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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