Cremona's table of elliptic curves

Curve 28908d1

28908 = 22 · 32 · 11 · 73



Data for elliptic curve 28908d1

Field Data Notes
Atkin-Lehner 2- 3+ 11- 73+ Signs for the Atkin-Lehner involutions
Class 28908d Isogeny class
Conductor 28908 Conductor
∏ cp 12 Product of Tamagawa factors cp
deg 8448 Modular degree for the optimal curve
Δ -61053696 = -1 · 28 · 33 · 112 · 73 Discriminant
Eigenvalues 2- 3+ -3  4 11- -2 -3  3 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-144,-764] [a1,a2,a3,a4,a6]
Generators [20:66:1] Generators of the group modulo torsion
j -47775744/8833 j-invariant
L 5.1456954707663 L(r)(E,1)/r!
Ω 0.68224879990525 Real period
R 0.62852137806142 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 115632n1 28908b1 Quadratic twists by: -4 -3


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

Part of Computational Number Theory
Back to Tables and computations