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	91728bb	Isogeny class
Conductor	91728	Conductor
∏ cp	16	Product of Tamagawa factors cp
Δ	11652380059686912 = 211 · 312 · 77 · 13	Discriminant
Eigenvalues	2+ 3- -2 7- -4 13+ -6  4	Hecke eigenvalues for primes up to 20
Equation	[0,0,0,-1248234771,16974325574066]	[a1,a2,a3,a4,a6]
Generators	[20759:89566:1]	Generators of the group modulo torsion
j	1224522642327678150914/66339	j-invariant
L	3.8345366551334	L(r)(E,1)/r!
Ω	0.15140748925031	Real period
R	6.3314844557626	Regulator
r	1	Rank of the group of rational points
S	0.99999999907052	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	45864o6 30576d6 13104w5	Quadratic twists by: -4 -3 -7

Hecke Eigenvalues for elliptic curve 91728bb6

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

---

Quadratic twists for elliptic curve 91728bb6

-4	-3	-7
45864o6	30576d6	13104w5

---

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