Cremona's table of elliptic curves

12730 = 2 · 5 · 19 · 67

Class	r	Atkin-Lehner	Eigenvalues
12730a (1 curve)	0	2+ 5+ 19+ 67-	2+  0 5+ -4  6  3  8 19+
Curve Equation t 12730a1 [1,-1,0,25,261] 1
12730b (1 curve)	1	2+ 5+ 19- 67-	2+  2 5+  3 -3  0 -2 19-
Curve Equation t Generators 12730b1 [1,1,0,-513,-4693] 1 [119:1220:1]
12730c (3 curves)	1	2+ 5+ 19- 67-	2+ -2 5+ -1 -3 -4 -6 19-
Curve Equation t Generators 12730c1 [1,0,1,-12657854,17332522896] 3 [5949594:21852753:2744] 12730c2 [1,0,1,-12657069,17334780392] 3 [1178:63127:1] 12730c3 [1,0,1,5604116,61818107946] 1 [58870:5636211:8]
12730d (2 curves)	0	2+ 5- 19- 67-	2+  0 5-  4  4 -2  6 19-
Curve Equation t 12730d1 [1,-1,0,536,0] 2 12730d2 [1,-1,0,-2144,1608] 2
12730e (2 curves)	0	2- 5+ 19- 67-	2-  0 5+  4  0  2 -2 19-
Curve Equation t 12730e1 [1,-1,1,522,24581] 2 12730e2 [1,-1,1,-10198,376197] 2
12730f (1 curve)	2	2- 5- 19+ 67-	2- -2 5- -3 -5 -4 -6 19+
Curve Equation t Generators 12730f1 [1,0,0,-475,5457] 1 [-16:103:1]&[-6:93:1]

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