Cremona's table of elliptic curves

7990 = 2 · 5 · 17 · 47

Class	r	Atkin-Lehner	Eigenvalues
7990a (2 curves)	0	2+ 5+ 17+ 47-	2+  1 5+ -1  3  5 17+  5
Curve Equation t 7990a1 [1,0,1,-14054,640072] 3 7990a2 [1,0,1,-20869,-44624] 1
7990b (2 curves)	1	2+ 5- 17+ 47-	2+  2 5- -4  4 -2 17+ -4
Curve Equation t Generators 7990b1 [1,1,0,-2057,-26299] 2 [-23:109:1] 7990b2 [1,1,0,5463,-166171] 2 [3891:49567:27]
7990c (1 curve)	2	2+ 5- 17- 47-	2+ -3 5- -5 -3 -1 17- -1
Curve Equation t Generators 7990c1 [1,-1,0,-604,5728] 1 [-27:56:1]&[-8:104:1]
7990d (2 curves)	0	2- 5+ 17+ 47+	2-  0 5+  2  6  2 17+  4
Curve Equation t 7990d1 [1,-1,1,-253,1537] 2 7990d2 [1,-1,1,-723,-5419] 2
7990e (4 curves)	1	2- 5+ 17- 47+	2- -2 5+ -4  0 -4 17-  2
Curve Equation t Generators 7990e1 [1,0,0,544,295936] 6 [-32:512:1] 7990e2 [1,0,0,-63456,6017536] 6 [116:412:1] 7990e3 [1,0,0,-4896,-7991360] 2 [1090:35260:1] 7990e4 [1,0,0,-629896,-190116360] 2 [1458:43896:1]
7990f (1 curve)	1	2- 5- 17+ 47+	2- -1 5-  1 -5  3 17+ -3
Curve Equation t Generators 7990f1 [1,1,1,-161775,23656885] 1 [-37:5458:1]
7990g (4 curves)	0	2- 5- 17- 47+	2-  0 5-  0 -4 -6 17-  0
Curve Equation t 7990g1 [1,-1,1,-817,9809] 4 7990g2 [1,-1,1,-13317,594809] 4 7990g3 [1,-1,1,-13567,571509] 2 7990g4 [1,-1,1,-213067,37908109] 2
7990h (2 curves)	0	2- 5- 17- 47+	2- -2 5-  0  0  4 17- -6
Curve Equation t 7990h1 [1,0,0,0,-68] 2 7990h2 [1,0,0,-250,-1518] 2

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

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