Cremona's table of elliptic curves

28428 = 2² · 3 · 23 · 103

Field	Data	Notes
Atkin-Lehner	2- 3+ 23- 103+	Signs for the Atkin-Lehner involutions
Class	28428a	Isogeny class
Conductor	28428	Conductor
∏ cp	9	Product of Tamagawa factors cp
deg	17640	Modular degree for the optimal curve
Δ	-43852009392 = -1 · 24 · 37 · 233 · 103	Discriminant
Eigenvalues	2- 3+  2 -2  0  5  3 -2	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,283,-10002]	[a1,a2,a3,a4,a6]
Generators	[21:69:1]	Generators of the group modulo torsion
j	156108849152/2740750587	j-invariant
L	5.3248978866953	L(r)(E,1)/r!
Ω	0.55536590524559	Real period
R	1.0653432541601	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	113712o1 85284b1	Quadratic twists by: -4 -3

Hecke Eigenvalues for elliptic curve 28428a1

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	0	5	3	-2	-	0	4	-3	-2	-12	-7	0	4	6	3	3	8	6	0	-10	4

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Quadratic twists for elliptic curve 28428a1

-4	-3
113712o1	85284b1

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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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