Cremona's table of elliptic curves

21780 = 2² · 3² · 5 · 11²

Field	Data	Notes
Atkin-Lehner	2- 3- 5- 11-	Signs for the Atkin-Lehner involutions
Class	21780z	Isogeny class
Conductor	21780	Conductor
∏ cp	36	Product of Tamagawa factors cp
Δ	-8269593750000 = -1 · 24 · 37 · 59 · 112	Discriminant
Eigenvalues	2- 3- 5- -2 11-  4 -3  4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,4983,28501]	[a1,a2,a3,a4,a6]
Generators	[92:1125:1]	Generators of the group modulo torsion
j	9695350016/5859375	j-invariant
L	5.5216546227613	L(r)(E,1)/r!
Ω	0.45209011286181	Real period
R	0.33926708572719	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	87120ga2 7260o2 108900ca2 21780w2	Quadratic twists by: -4 -3 5 -11

Hecke Eigenvalues for elliptic curve 21780z2

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	-3	4	3	0	-1	2	6	-8	-3	-9	-12	-5	2	-12	-8	1	0	-6	-10

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Quadratic twists for elliptic curve 21780z2

-4	-3	5	-11
87120ga2	7260o2	108900ca2	21780w2

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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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