Cremona's table of elliptic curves

Curve 78400x2

78400 = 26 · 52 · 72



Data for elliptic curve 78400x2

Field Data Notes
Atkin-Lehner 2+ 5+ 7- Signs for the Atkin-Lehner involutions
Class 78400x Isogeny class
Conductor 78400 Conductor
∏ cp 64 Product of Tamagawa factors cp
Δ 9223681600000000 = 212 · 58 · 78 Discriminant
Eigenvalues 2+  0 5+ 7- -4 -2  6 -4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-63700,-4116000] [a1,a2,a3,a4,a6]
j 3796416/1225 j-invariant
L 1.2328383846328 L(r)(E,1)/r!
Ω 0.30820959315067 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 4 Number of elements in the torsion subgroup
Twists 78400t2 39200bq1 15680e2 11200b2 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
Back to Tables and computations