Cremona's table of elliptic curves

Curve 78400a1

78400 = 26 · 52 · 72



Data for elliptic curve 78400a1

Field Data Notes
Atkin-Lehner 2+ 5+ 7+ Signs for the Atkin-Lehner involutions
Class 78400a Isogeny class
Conductor 78400 Conductor
∏ cp 6 Product of Tamagawa factors cp
deg 96768 Modular degree for the optimal curve
Δ 2014104780800 = 225 · 52 · 74 Discriminant
Eigenvalues 2+  0 5+ 7+  2  0  7  0 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-6860,-207760] [a1,a2,a3,a4,a6]
Generators [-56:28:1] Generators of the group modulo torsion
j 2268945/128 j-invariant
L 6.1581934031522 L(r)(E,1)/r!
Ω 0.52643413878861 Real period
R 1.9496561705974 Regulator
r 1 Rank of the group of rational points
S 1.0000000000874 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 78400fw1 2450a1 78400dm1 78400s1 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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