Cremona's table of elliptic curves

21360 = 2⁴ · 3 · 5 · 89

Field	Data	Notes
Atkin-Lehner	2- 3- 5- 89-	Signs for the Atkin-Lehner involutions
Class	21360p	Isogeny class
Conductor	21360	Conductor
∏ cp	128	Product of Tamagawa factors cp
Δ	6569994240000 = 214 · 34 · 54 · 892	Discriminant
Eigenvalues	2- 3- 5- -4 -4  2  2 -4	Hecke eigenvalues for primes up to 20
Equation	[0,1,0,-213600,37925748]	[a1,a2,a3,a4,a6]
Generators	[186:2160:1]	Generators of the group modulo torsion
j	263129501187842401/1604002500	j-invariant
L	5.5981658969336	L(r)(E,1)/r!
Ω	0.66856038509999	Real period
R	1.0466829215614	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	4	Number of elements in the torsion subgroup
Twists	2670d2 85440bd2 64080u2 106800bj2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 21360p2

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
-	-	-	-4	-4	2	2	-4	4	-6	4	2	2	4	0	-2	12	-6	4	8	-6	-8	-4	-	2

---

Quadratic twists for elliptic curve 21360p2

-4	8	-3	5
2670d2	85440bd2	64080u2	106800bj2

---

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
Back to Tables and computations