Cremona's table of elliptic curves

20400 = 2⁴ · 3 · 5² · 17

Field	Data	Notes
Atkin-Lehner	2- 3- 5+ 17+	Signs for the Atkin-Lehner involutions
Class	20400dc	Isogeny class
Conductor	20400	Conductor
∏ cp	96	Product of Tamagawa factors cp
Δ	2538086400000000 = 219 · 36 · 58 · 17	Discriminant
Eigenvalues	2- 3- 5+ -2 -4  0 17+ -4	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-4641008,3846731988]	[a1,a2,a3,a4,a6]
Generators	[1618:-24000:1]	Generators of the group modulo torsion
j	172735174415217961/39657600	j-invariant
L	5.4482513236043	L(r)(E,1)/r!
Ω	0.36334293489688	Real period
R	0.62478295300079	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	2550s2 81600fp2 61200fu2 4080w2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 20400dc2

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

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Quadratic twists for elliptic curve 20400dc2

-4	8	-3	5
2550s2	81600fp2	61200fu2	4080w2

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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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