Cremona's table of elliptic curves

21315 = 3 · 5 · 7² · 29

Field	Data	Notes
Atkin-Lehner	3- 5+ 7- 29-	Signs for the Atkin-Lehner involutions
Class	21315q	Isogeny class
Conductor	21315	Conductor
∏ cp	20	Product of Tamagawa factors cp
deg	12800	Modular degree for the optimal curve
Δ	60428025 = 35 · 52 · 73 · 29	Discriminant
Eigenvalues	-1 3- 5+ 7- -4 -6 -6  0	Hecke eigenvalues for primes up to 20
Equation	[1,0,0,-1016,12375]	[a1,a2,a3,a4,a6]
Generators	[-27:156:1] [-17:166:1]	Generators of the group modulo torsion
j	338171833063/176175	j-invariant
L	5.3518477509549	L(r)(E,1)/r!
Ω	1.9471171086054	Real period
R	0.5497201711497	Regulator
r	2	Rank of the group of rational points
S	0.99999999999992	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	63945ba1 106575u1 21315j1	Quadratic twists by: -3 5 -7

Hecke Eigenvalues for elliptic curve 21315q1

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
-1	-	+	-	-4	-6	-6	0	-6	-	0	8	-8	6	-12	0	-4	10	-8	-12	-10	-4	-12	-12	2

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Quadratic twists for elliptic curve 21315q1

-3	5	-7
63945ba1	106575u1	21315j1

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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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