Cremona's table of elliptic curves

637 = 7² · 13

Field	Data	Notes
Atkin-Lehner	7- 13-	Signs for the Atkin-Lehner involutions
Class	637c	Isogeny class
Conductor	637	Conductor
∏ cp	1	Product of Tamagawa factors cp
deg	420	Modular degree for the optimal curve
Δ	-3672178237 = -1 · 710 · 13	Discriminant
Eigenvalues	1  0  0 7- -3 13- -7  7	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,-5252,-145223]	[a1,a2,a3,a4,a6]
Generators	[33432:158761:343]	Generators of the group modulo torsion
j	-56723625/13	j-invariant
L	2.4750227405405	L(r)(E,1)/r!
Ω	0.28040033781114	Real period
R	8.8267466432495	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	10192bd1 40768k1 5733k1 15925h1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 637c1

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
1	0	0	-	-3	-	-7	7	-6	-5	0	8	0	2	-7	-3	7	7	-3	-5	-14	-6	0	0	14

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Quadratic twists for elliptic curve 637c1

-4	8	-3	5	-7	-11	13
10192bd1	40768k1	5733k1	15925h1	637a1	77077n1	8281f1

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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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