Cremona's table of elliptic curves

39984 = 2⁴ · 3 · 7² · 17

Field	Data	Notes
Atkin-Lehner	2- 3+ 7- 17+	Signs for the Atkin-Lehner involutions
Class	39984bu	Isogeny class
Conductor	39984	Conductor
∏ cp	16	Product of Tamagawa factors cp
deg	193536	Modular degree for the optimal curve
Δ	-1017801955344384 = -1 · 226 · 32 · 73 · 173	Discriminant
Eigenvalues	2- 3+  2 7-  4  2 17+  4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-2872,-1535120]	[a1,a2,a3,a4,a6]
Generators	[20645:196392:125]	Generators of the group modulo torsion
j	-1865409391/724451328	j-invariant
L	6.3725080600767	L(r)(E,1)/r!
Ω	0.221119872445	Real period
R	7.2048115685093	Regulator
r	1	Rank of the group of rational points
S	1.0000000000001	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	4998r1 119952gu1 39984dr1	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 39984bu1

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	-	4	2	+	4	-6	-10	8	0	-6	8	4	14	-14	-14	-4	10	-14	-4	-6	-2	-2

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Quadratic twists for elliptic curve 39984bu1

-4	-3	-7
4998r1	119952gu1	39984dr1

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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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