Cremona's table of elliptic curves

82646 = 2 · 31² · 43

Class	r	Atkin-Lehner	Eigenvalues
82646a (1 curve)	0	2+ 31- 43+	2+  0  1  2  5  3 -6  4
Curve Equation t 82646a1 [1,-1,0,-23192954,-22848023884] 1
82646b (1 curve)	1	2+ 31- 43-	2+  2 -1  0  5  5  6 -4
Curve Equation t Generators 82646b1 [1,1,0,-3383,-17581] 1 [85349:203822:1331]
82646c (1 curve)	1	2- 31+ 43-	2-  2  0  0  3  2 -3  6
Curve Equation t Generators 82646c1 [1,1,1,40342,37181047] 1 [-235:3963:1]
82646d (1 curve)	1	2- 31- 43+	2-  0  1  0  3  1  0 -8
Curve Equation t Generators 82646d1 [1,-1,1,-3004747,-1993624997] 1 [-953:2398:1]
82646e (2 curves)	1	2- 31- 43+	2-  2 -3 -4  3  7  6 -4
Curve Equation t Generators 82646e1 [1,1,1,-371927,-86943635] 1 [803:11130:1] 82646e2 [1,1,1,-2370807,1347514157] 1 [138195:1043678:125]
82646f (1 curve)	1	2- 31- 43+	2- -2  0  0 -3 -2  3  6
Curve Equation t Generators 82646f1 [1,0,0,42,-1244] 1 [12:26:1]
82646g (1 curve)	2	2- 31- 43-	2-  0 -1 -2 -5  1 -2 -4
Curve Equation t Generators 82646g1 [1,-1,1,-199588,-34249785] 1 [-6945:-385:27]&[-255:249:1]

Data from Elliptic Curve Data by J. E. Cremona.
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