Cremona's table of elliptic curves

19920 = 2⁴ · 3 · 5 · 83

Field	Data	Notes
Atkin-Lehner	2+ 3+ 5+ 83-	Signs for the Atkin-Lehner involutions
Class	19920c	Isogeny class
Conductor	19920	Conductor
∏ cp	16	Product of Tamagawa factors cp
Δ	-520689358080000 = -1 · 211 · 310 · 54 · 832	Discriminant
Eigenvalues	2+ 3+ 5+ -4  0  4 -2  8	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,19944,-180144]	[a1,a2,a3,a4,a6]
j	428359872306382/254242850625	j-invariant
L	1.2198434102099	L(r)(E,1)/r!
Ω	0.30496085255249	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	9960d2 79680bz2 59760n2 99600w2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 19920c2

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	4	-2	8	-6	4	4	2	6	4	0	10	12	2	-16	-12	-14	-6	-	10	-10

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Quadratic twists for elliptic curve 19920c2

-4	8	-3	5
9960d2	79680bz2	59760n2	99600w2

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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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