Cremona's table of elliptic curves

Curve 81225bd1

81225 = 32 · 52 · 192



Data for elliptic curve 81225bd1

Field Data Notes
Atkin-Lehner 3- 5+ 19- Signs for the Atkin-Lehner involutions
Class 81225bd Isogeny class
Conductor 81225 Conductor
∏ cp 32 Product of Tamagawa factors cp
deg 552960 Modular degree for the optimal curve
Δ 30545273331140625 = 37 · 56 · 197 Discriminant
Eigenvalues -1 3- 5+  0  0  6 -6 19- Hecke eigenvalues for primes up to 20
Equation [1,-1,1,-123530,-14410528] [a1,a2,a3,a4,a6]
Generators [-185:1536:1] Generators of the group modulo torsion
j 389017/57 j-invariant
L 3.9297107839486 L(r)(E,1)/r!
Ω 0.25715103320286 Real period
R 1.9102153385107 Regulator
r 1 Rank of the group of rational points
S 1.0000000001132 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 27075q1 3249e1 4275e1 Quadratic twists by: -3 5 -19


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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