Cremona's table of elliptic curves

Curve 1845a1

1845 = 32 · 5 · 41



Data for elliptic curve 1845a1

Field Data Notes
Atkin-Lehner 3+ 5+ 41+ Signs for the Atkin-Lehner involutions
Class 1845a Isogeny class
Conductor 1845 Conductor
∏ cp 4 Product of Tamagawa factors cp
deg 160 Modular degree for the optimal curve
Δ -27675 = -1 · 33 · 52 · 41 Discriminant
Eigenvalues  0 3+ 5+ -2  3  4 -5  0 Hecke eigenvalues for primes up to 20
Equation [0,0,1,-48,128] [a1,a2,a3,a4,a6]
Generators [6:7:1] Generators of the group modulo torsion
j -452984832/1025 j-invariant
L 2.3312943530211 L(r)(E,1)/r!
Ω 3.7524418832957 Real period
R 0.15531848497102 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 29520v1 118080l1 1845b1 9225b1 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
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