Cremona's table of elliptic curves

Curve 320f4

320 = 26 · 5



Data for elliptic curve 320f4

Field Data Notes
Atkin-Lehner 2- 5- Signs for the Atkin-Lehner involutions
Class 320f Isogeny class
Conductor 320 Conductor
∏ cp 24 Product of Tamagawa factors cp
Δ -256000000 = -1 · 214 · 56 Discriminant
Eigenvalues 2- -2 5- -2  0 -2 -6 -4 Hecke eigenvalues for primes up to 20
Equation [0,1,0,-145,975] [a1,a2,a3,a4,a6]
Generators [-5:40:1] Generators of the group modulo torsion
j -20720464/15625 j-invariant
L 1.3296773087947 L(r)(E,1)/r!
Ω 1.6080776337804 Real period
R 0.13781230466972 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 320c4 80b3 2880ba4 1600r4 Quadratic twists by: -4 8 -3 5


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