Cremona's table of elliptic curves

Curve 615a2

615 = 3 · 5 · 41



Data for elliptic curve 615a2

Field Data Notes
Atkin-Lehner 3+ 5+ 41+ Signs for the Atkin-Lehner involutions
Class 615a Isogeny class
Conductor 615 Conductor
∏ cp 4 Product of Tamagawa factors cp
Δ -680805 = -1 · 34 · 5 · 412 Discriminant
Eigenvalues -1 3+ 5+  0  2  0  0  2 Hecke eigenvalues for primes up to 20
Equation [1,1,1,19,-16] [a1,a2,a3,a4,a6]
Generators [3:7:1] Generators of the group modulo torsion
j 756058031/680805 j-invariant
L 1.2171094498295 L(r)(E,1)/r!
Ω 1.5738140457387 Real period
R 0.77335022719168 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 9840w2 39360be2 1845g2 3075i2 Quadratic twists by: -4 8 -3 5


Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

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