Cremona's table of elliptic curves

Curve 45a2

45 = 32 · 5



Data for elliptic curve 45a2

Field Data Notes
Atkin-Lehner 3- 5+ Signs for the Atkin-Lehner involutions
Class 45a Isogeny class
Conductor 45 Conductor
∏ cp 8 Product of Tamagawa factors cp
Δ 164025 = 38 · 52 Discriminant
Eigenvalues  1 3- 5+  0  4 -2 -2  4 Hecke eigenvalues for primes up to 20
Equation [1,-1,0,-45,-104] [a1,a2,a3,a4,a6]
j 13997521/225 j-invariant
L 0.92159087663963 L(r)(E,1)/r!
Ω 1.8431817532793 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 4 Number of elements in the torsion subgroup
Twists 720h2 2880r2 15a3 225c2 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