Cremona's table of elliptic curves

Curve 72a2

72 = 23 · 32



Data for elliptic curve 72a2

Field Data Notes
Atkin-Lehner 2+ 3- Signs for the Atkin-Lehner involutions
Class 72a Isogeny class
Conductor 72 Conductor
∏ cp 8 Product of Tamagawa factors cp
Δ 1679616 = 28 · 38 Discriminant
Eigenvalues 2+ 3-  2  0 -4 -2 -2 -4 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-39,-70] [a1,a2,a3,a4,a6]
j 35152/9 j-invariant
L 0.97326842113756 L(r)(E,1)/r!
Ω 1.9465368422751 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 4 Number of elements in the torsion subgroup
Twists 144b2 576d2 24a1 1800s2 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.

Part of Computational Number Theory
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