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	21756i	Isogeny class
Conductor	21756	Conductor
∏ cp	12	Product of Tamagawa factors cp
Δ	-4709448012374784 = -1 · 28 · 32 · 79 · 373	Discriminant
Eigenvalues	2- 3+  3 7-  3  1  6  4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,31491,2494521]	[a1,a2,a3,a4,a6]
j	114667692032/156365811	j-invariant
L	3.514873093804	L(r)(E,1)/r!
Ω	0.29290609115034	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	87024ej2 65268t2 3108j2	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 21756i2

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	1	6	4	6	0	7	-	-6	-10	0	3	3	10	-7	3	4	2	12	3	-5

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Quadratic twists for elliptic curve 21756i2

-4	-3	-7
87024ej2	65268t2	3108j2

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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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