Cremona's table of elliptic curves

Curve 85680ct2

85680 = 24 · 32 · 5 · 7 · 17



Data for elliptic curve 85680ct2

Field Data Notes
Atkin-Lehner 2- 3+ 5+ 7- 17+ Signs for the Atkin-Lehner involutions
Class 85680ct Isogeny class
Conductor 85680 Conductor
∏ cp 32 Product of Tamagawa factors cp
Δ 40774358016000000 = 216 · 39 · 56 · 7 · 172 Discriminant
Eigenvalues 2- 3+ 5+ 7- -4  4 17+  0 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-238923,43888122] [a1,a2,a3,a4,a6]
Generators [229:1088:1] Generators of the group modulo torsion
j 18708817969323/505750000 j-invariant
L 5.9593854855333 L(r)(E,1)/r!
Ω 0.36139185177666 Real period
R 2.0612617070604 Regulator
r 1 Rank of the group of rational points
S 1.0000000005111 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 10710p2 85680di2 Quadratic twists by: -4 -3


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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