Cremona's table of elliptic curves

18720 = 2⁵ · 3² · 5 · 13

Field	Data	Notes
Atkin-Lehner	2+ 3- 5+ 13-	Signs for the Atkin-Lehner involutions
Class	18720j	Isogeny class
Conductor	18720	Conductor
∏ cp	64	Product of Tamagawa factors cp
deg	196608	Modular degree for the optimal curve
Δ	136606377609000000 = 26 · 314 · 56 · 134	Discriminant
Eigenvalues	2+ 3- 5+  4  0 13- -2  8	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-146433,12204632]	[a1,a2,a3,a4,a6]
Generators	[12581:1410500:1]	Generators of the group modulo torsion
j	7442744143086784/2927948765625	j-invariant
L	5.6839677184322	L(r)(E,1)/r!
Ω	0.2981699800926	Real period
R	4.7657109182043	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	18720l1 37440ff2 6240z1 93600dp1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 18720j1

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
+	-	+	4	0	-	-2	8	-4	-6	-8	6	6	-4	-4	-6	-8	-10	4	-8	-14	0	-12	6	-6

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Quadratic twists for elliptic curve 18720j1

-4	8	-3	5
18720l1	37440ff2	6240z1	93600dp1

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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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