Cremona's table of elliptic curves

Curve 78400ii2

78400 = 26 · 52 · 72



Data for elliptic curve 78400ii2

Field Data Notes
Atkin-Lehner 2- 5+ 7- Signs for the Atkin-Lehner involutions
Class 78400ii Isogeny class
Conductor 78400 Conductor
∏ cp 32 Product of Tamagawa factors cp
Δ 28098560000000000 = 223 · 510 · 73 Discriminant
Eigenvalues 2-  2 5+ 7- -4 -2  8  6 Hecke eigenvalues for primes up to 20
Equation [0,-1,0,-1905633,-1011860863] [a1,a2,a3,a4,a6]
Generators [-4580746577:-857520000:5735339] Generators of the group modulo torsion
j 544737993463/20000 j-invariant
L 9.3506133030858 L(r)(E,1)/r!
Ω 0.12849631588083 Real period
R 9.0961881244246 Regulator
r 1 Rank of the group of rational points
S 1.0000000002894 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 78400cv2 19600cw2 15680dt2 78400it2 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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