Cremona's table of elliptic curves

91728 = 2⁴ · 3² · 7² · 13

Field	Data	Notes
Atkin-Lehner	2- 3+ 7- 13-	Signs for the Atkin-Lehner involutions
Class	91728dc	Isogeny class
Conductor	91728	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	137429091072 = 28 · 33 · 76 · 132	Discriminant
Eigenvalues	2- 3+ -4 7-  4 13-  0  0	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-132447,-18552870]	[a1,a2,a3,a4,a6]
j	315978926832/169	j-invariant
L	2.0020688300942	L(r)(E,1)/r!
Ω	0.25025861526058	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	4	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	22932f2 91728db2 1872l2	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 91728dc2

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	-	0	0	8	-8	4	6	-12	8	-4	0	4	2	8	4	10	4	12	12	-14

---

Quadratic twists for elliptic curve 91728dc2

-4	-3	-7
22932f2	91728db2	1872l2

---

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