Cremona's table of elliptic curves

Curve 91728da2

91728 = 24 · 32 · 72 · 13



Data for elliptic curve 91728da2

Field Data Notes
Atkin-Lehner 2- 3+ 7- 13- Signs for the Atkin-Lehner involutions
Class 91728da Isogeny class
Conductor 91728 Conductor
∏ cp 32 Product of Tamagawa factors cp
Δ 6033686814425088 = 215 · 33 · 79 · 132 Discriminant
Eigenvalues 2- 3+  4 7-  4 13- -2  4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-706923,-228743270] [a1,a2,a3,a4,a6]
j 8754552981/1352 j-invariant
L 5.2687857218028 L(r)(E,1)/r!
Ω 0.16464955121898 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 4 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 11466bq2 91728dd2 91728cr2 Quadratic twists by: -4 -3 -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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