Cremona's table of elliptic curves

Conductor 1891

1891 = 31 · 61



Isogeny classes of curves of conductor 1891 [newforms of level 1891]

Class r Atkin-Lehner Eigenvalues
1891a (1 curve) 1 31+ 61+  1  2 -3  3 -3  5 -8 -4
1891b (1 curve) 1 31+ 61+ -1  2 -3 -3  3  5 -4  8


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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