Cremona's table of elliptic curves

Curve 68400z2

68400 = 24 · 32 · 52 · 19



Data for elliptic curve 68400z2

Field Data Notes
Atkin-Lehner 2+ 3+ 5- 19- Signs for the Atkin-Lehner involutions
Class 68400z Isogeny class
Conductor 68400 Conductor
∏ cp 16 Product of Tamagawa factors cp
Δ -311904000 = -1 · 28 · 33 · 53 · 192 Discriminant
Eigenvalues 2+ 3+ 5- -2 -2 -6 -2 19- Hecke eigenvalues for primes up to 20
Equation [0,0,0,-15,-850] [a1,a2,a3,a4,a6]
Generators [25:120:1] Generators of the group modulo torsion
j -432/361 j-invariant
L 4.3452156823664 L(r)(E,1)/r!
Ω 0.7756097305005 Real period
R 1.4005805726925 Regulator
r 1 Rank of the group of rational points
S 1.0000000000565 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 34200cd2 68400y2 68400x2 Quadratic twists by: -4 -3 5


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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