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	20400ba	Isogeny class
Conductor	20400	Conductor
∏ cp	84	Product of Tamagawa factors cp
deg	28224	Modular degree for the optimal curve
Δ	-550130227200 = -1 · 211 · 37 · 52 · 173	Discriminant
Eigenvalues	2+ 3- 5+  0 -2  6 17- -8	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-1688,-45132]	[a1,a2,a3,a4,a6]
Generators	[154:-1836:1]	Generators of the group modulo torsion
j	-10395091970/10744731	j-invariant
L	6.3712795417003	L(r)(E,1)/r!
Ω	0.35762179674364	Real period
R	0.21209156338699	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	10200d1 81600gb1 61200bb1 20400j1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 20400ba1

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	-	-8	-3	4	-10	5	9	6	-4	3	-3	-13	-2	-5	0	-4	-9	10	-8

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Quadratic twists for elliptic curve 20400ba1

-4	8	-3	5
10200d1	81600gb1	61200bb1	20400j1

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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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