Cremona's table of elliptic curves

31920 = 2⁴ · 3 · 5 · 7 · 19

Field	Data	Notes
Atkin-Lehner	2+ 3+ 5- 7- 19+	Signs for the Atkin-Lehner involutions
Class	31920i	Isogeny class
Conductor	31920	Conductor
∏ cp	384	Product of Tamagawa factors cp
Δ	-891525600000000 = -1 · 211 · 32 · 58 · 73 · 192	Discriminant
Eigenvalues	2+ 3+ 5- 7- -2  2  0 19+	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,2760,-1436400]	[a1,a2,a3,a4,a6]
Generators	[480:-10500:1]	Generators of the group modulo torsion
j	1134915803278/435315234375	j-invariant
L	5.3361827563746	L(r)(E,1)/r!
Ω	0.23372028297533	Real period
R	0.23782804101532	Regulator
r	1	Rank of the group of rational points
S	0.99999999999999	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	15960h2 127680fn2 95760y2	Quadratic twists by: -4 8 -3

Hecke Eigenvalues for elliptic curve 31920i2

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

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Quadratic twists for elliptic curve 31920i2

-4	8	-3
15960h2	127680fn2	95760y2

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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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