Cremona's table of elliptic curves

Curve 21462z1

21462 = 2 · 3 · 72 · 73



Data for elliptic curve 21462z1

Field Data Notes
Atkin-Lehner 2- 3+ 7- 73+ Signs for the Atkin-Lehner involutions
Class 21462z Isogeny class
Conductor 21462 Conductor
∏ cp 8 Product of Tamagawa factors cp
deg 11520 Modular degree for the optimal curve
Δ 309181572 = 22 · 32 · 76 · 73 Discriminant
Eigenvalues 2- 3+  0 7-  4 -4  2 -4 Hecke eigenvalues for primes up to 20
Equation [1,1,1,-638,5879] [a1,a2,a3,a4,a6]
Generators [21:37:1] Generators of the group modulo torsion
j 244140625/2628 j-invariant
L 6.8696761201659 L(r)(E,1)/r!
Ω 1.7293611256546 Real period
R 1.9861890088358 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 64386p1 438b1 Quadratic twists by: -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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