Cremona's table of elliptic curves

23940 = 2² · 3² · 5 · 7 · 19

Field	Data	Notes
Atkin-Lehner	2- 3+ 5+ 7- 19-	Signs for the Atkin-Lehner involutions
Class	23940b	Isogeny class
Conductor	23940	Conductor
∏ cp	36	Product of Tamagawa factors cp
Δ	207416160000 = 28 · 33 · 54 · 7 · 193	Discriminant
Eigenvalues	2- 3+ 5+ 7-  0  2  6 19-	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-768183,259146382]	[a1,a2,a3,a4,a6]
j	7252939560652551792/30008125	j-invariant
L	2.6908929989212	L(r)(E,1)/r!
Ω	0.6727232497303	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	4	(Analytic) order of Ш
t	6	Number of elements in the torsion subgroup
Twists	95760br2 23940e4 119700d2	Quadratic twists by: -4 -3 5

Hecke Eigenvalues for elliptic curve 23940b2

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

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Quadratic twists for elliptic curve 23940b2

-4	-3	5
95760br2	23940e4	119700d2

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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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