Cremona's table of elliptic curves

248 = 2³ · 31

Class	r	Atkin-Lehner	Eigenvalues
248a (1 curve)	1	2+ 31+	2+ -2  1 -3 -2 -2 -6  1
Curve Equation t Generators 248a1 [0,1,0,0,1] 1 [0:1:1]
248b (2 curves)	0	2- 31+	2- -2  2  0  2  4  6  4
Curve Equation t 248b1 [0,1,0,8,0] 2 248b2 [0,1,0,-32,-32] 2
248c (1 curve)	1	2- 31-	2-  0 -3 -3  2 -4  0  1
Curve Equation t Generators 248c1 [0,0,0,1,-1] 1 [1:1:1]

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