Cremona's table of elliptic curves

40931 = 11 · 61²

Field	Data	Notes
Atkin-Lehner	11+ 61+	Signs for the Atkin-Lehner involutions
Class	40931a	Isogeny class
Conductor	40931	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	44400	Modular degree for the optimal curve
Δ	-566724117971 = -1 · 11 · 616	Discriminant
Eigenvalues	2 -1  1  2 11+  4  2  0	Hecke eigenvalues for primes up to 20
Equation	[0,-1,1,-1240,40345]	[a1,a2,a3,a4,a6]
Generators	[681760:4966035:32768]	Generators of the group modulo torsion
j	-4096/11	j-invariant
L	10.951214812904	L(r)(E,1)/r!
Ω	0.81252799650878	Real period
R	6.7389769090768	Regulator
r	1	Rank of the group of rational points
S	1.0000000000001	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	11a3	Quadratic twists by: 61

Hecke Eigenvalues for elliptic curve 40931a1

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	1	2	+	4	2	0	1	0	-7	-3	-8	6	8	6	-5	+	7	3	4	10	-6	-15	-7

---

Quadratic twists for elliptic curve 40931a1

61
11a3

---

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