Cremona's table of elliptic curves

21312 = 2⁶ · 3² · 37

Field	Data	Notes
Atkin-Lehner	2+ 3- 37-	Signs for the Atkin-Lehner involutions
Class	21312x	Isogeny class
Conductor	21312	Conductor
∏ cp	1	Product of Tamagawa factors cp
deg	2240	Modular degree for the optimal curve
Δ	1726272 = 26 · 36 · 37	Discriminant
Eigenvalues	2+ 3- -2 -1 -5  2  0  0	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-36,-54]	[a1,a2,a3,a4,a6]
Generators	[-5:1:1]	Generators of the group modulo torsion
j	110592/37	j-invariant
L	3.6835373282554	L(r)(E,1)/r!
Ω	2.0015510489147	Real period
R	1.8403414343355	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	21312ci1 333d1 2368g1	Quadratic twists by: -4 8 -3

Hecke Eigenvalues for elliptic curve 21312x1

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	-1	-5	2	0	0	-2	6	-4	-	9	-2	9	1	8	8	-8	-9	-1	4	-15	-4	4

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Quadratic twists for elliptic curve 21312x1

-4	8	-3
21312ci1	333d1	2368g1

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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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