Cremona's table of elliptic curves

23998 = 2 · 13² · 71

Field	Data	Notes
Atkin-Lehner	2+ 13+ 71+	Signs for the Atkin-Lehner involutions
Class	23998a	Isogeny class
Conductor	23998	Conductor
∏ cp	3	Product of Tamagawa factors cp
Δ	81778368568 = 23 · 134 · 713	Discriminant
Eigenvalues	2+  1  0 -1  0 13+  6 -4	Hecke eigenvalues for primes up to 20
Equation	[1,0,1,-1356,-13518]	[a1,a2,a3,a4,a6]
Generators	[-12:38:1]	Generators of the group modulo torsion
j	9644259625/2863288	j-invariant
L	4.239623535903	L(r)(E,1)/r!
Ω	0.80481520653337	Real period
R	1.7559407847029	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	23998k2	Quadratic twists by: 13

Hecke Eigenvalues for elliptic curve 23998a2

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	-1	0	+	6	-4	0	0	8	8	12	-7	-9	3	0	-13	2	+	11	2	-3	-3	-4

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Quadratic twists for elliptic curve 23998a2

13
23998k2

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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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