Cremona's table of elliptic curves

Curve 84640r1

84640 = 25 · 5 · 232



Data for elliptic curve 84640r1

Field Data Notes
Atkin-Lehner 2- 5- 23- Signs for the Atkin-Lehner involutions
Class 84640r Isogeny class
Conductor 84640 Conductor
∏ cp 4 Product of Tamagawa factors cp
deg 812544 Modular degree for the optimal curve
Δ -530259343534707200 = -1 · 29 · 52 · 2310 Discriminant
Eigenvalues 2- -1 5-  0  0  4  5 -1 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-93280,-36679900] [a1,a2,a3,a4,a6]
j -4232/25 j-invariant
L 1.9565609448584 L(r)(E,1)/r!
Ω 0.12228505569637 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 4 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 84640e1 84640l1 Quadratic twists by: -4 -23


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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