Cremona's table of elliptic curves

Curve 21360g2

21360 = 24 · 3 · 5 · 89



Data for elliptic curve 21360g2

Field Data Notes
Atkin-Lehner 2- 3+ 5+ 89+ Signs for the Atkin-Lehner involutions
Class 21360g Isogeny class
Conductor 21360 Conductor
∏ cp 8 Product of Tamagawa factors cp
Δ -1064339066880 = -1 · 212 · 38 · 5 · 892 Discriminant
Eigenvalues 2- 3+ 5+ -4  0  4 -6 -2 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-1976,60720] [a1,a2,a3,a4,a6]
Generators [26:162:1] [66:462:1] Generators of the group modulo torsion
j -208422380089/259848405 j-invariant
L 5.8264617860189 L(r)(E,1)/r!
Ω 0.7897622916273 Real period
R 3.6887439725777 Regulator
r 2 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 1335a2 85440bs2 64080bk2 106800bv2 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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