Cremona's table of elliptic curves

Curve 39200bc1

39200 = 25 · 52 · 72



Data for elliptic curve 39200bc1

Field Data Notes
Atkin-Lehner 2+ 5- 7- Signs for the Atkin-Lehner involutions
Class 39200bc Isogeny class
Conductor 39200 Conductor
∏ cp 4 Product of Tamagawa factors cp
deg 7680 Modular degree for the optimal curve
Δ -25088000 = -1 · 212 · 53 · 72 Discriminant
Eigenvalues 2+ -1 5- 7-  4 -2 -6  6 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,47,-223] [a1,a2,a3,a4,a6]
Generators [7:20:1] Generators of the group modulo torsion
j 448 j-invariant
L 4.2622015785936 L(r)(E,1)/r!
Ω 1.1013330160072 Real period
R 0.96750971700741 Regulator
r 1 Rank of the group of rational points
S 1.0000000000004 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 39200cs1 78400eo1 39200cr1 39200u1 Quadratic twists by: -4 8 5 -7


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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