Cremona's table of elliptic curves

18768 = 2⁴ · 3 · 17 · 23

Field	Data	Notes
Atkin-Lehner	2- 3+ 17- 23-	Signs for the Atkin-Lehner involutions
Class	18768r	Isogeny class
Conductor	18768	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	7168	Modular degree for the optimal curve
Δ	-3502559232 = -1 · 212 · 37 · 17 · 23	Discriminant
Eigenvalues	2- 3+  0  2  3  1 17- -5	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,272,2176]	[a1,a2,a3,a4,a6]
j	541343375/855117	j-invariant
L	1.9170615644798	L(r)(E,1)/r!
Ω	0.95853078223989	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	1173e1 75072df1 56304x1	Quadratic twists by: -4 8 -3

Hecke Eigenvalues for elliptic curve 18768r1

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	3	1	-	-5	-	-3	7	-2	-3	4	-11	-3	7	-5	11	2	-10	12	8	17	7

---

Quadratic twists for elliptic curve 18768r1

-4	8	-3
1173e1	75072df1	56304x1

---

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