Cremona's table of elliptic curves

Curve 78400ld1

78400 = 26 · 52 · 72



Data for elliptic curve 78400ld1

Field Data Notes
Atkin-Lehner 2- 5- 7- Signs for the Atkin-Lehner involutions
Class 78400ld Isogeny class
Conductor 78400 Conductor
∏ cp 8 Product of Tamagawa factors cp
deg 221184 Modular degree for the optimal curve
Δ -1686616064000 = -1 · 214 · 53 · 77 Discriminant
Eigenvalues 2-  3 5- 7-  3 -1 -5  8 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-7840,274400] [a1,a2,a3,a4,a6]
j -221184/7 j-invariant
L 6.6955088565532 L(r)(E,1)/r!
Ω 0.83693861282788 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 78400fu1 19600ee1 78400lk1 11200di1 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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