Cremona's table of elliptic curves

91791 = 3² · 7 · 31 · 47

Class	r	Atkin-Lehner	Eigenvalues
91791a (1 curve)	1	3- 7+ 31- 47+	0 3- -1 7+ -4 -5  0  2
Curve Equation t Generators 91791a1 [0,0,1,3095772,-4041202928] 1 [2592976:4175397679:1]
91791b (2 curves)	1	3- 7+ 31- 47+	1 3-  2 7+ -6  2 -4  4
Curve Equation t Generators 91791b1 [1,-1,0,-981,12312] 2 [-8:144:1] 91791b2 [1,-1,0,-15786,767367] 2 [782:2719:8]
91791c (1 curve)	1	3- 7+ 31- 47+	2 3- -1 7+  4  3  6  8
Curve Equation t Generators 91791c1 [0,0,1,-74973,-18352103] 1 [3218:32567:8]
91791d (1 curve)	0	3- 7+ 31- 47-	0 3-  1 7+ -4  3 -4 -2
Curve Equation t 91791d1 [0,0,1,-1970022,-1064277347] 1
91791e (2 curves)	0	3- 7+ 31- 47-	1 3-  0 7+  0  6  8  4
Curve Equation t 91791e1 [1,-1,0,-1302,6479] 2 91791e2 [1,-1,0,-16737,836882] 2
91791f (2 curves)	0	3- 7+ 31- 47-	-1 3- -2 7+ -6 -4  4  4
Curve Equation t 91791f1 [1,-1,1,6889594,2945603036] 2 91791f2 [1,-1,1,-30169841,24603136850] 2
91791g (1 curve)	2	3- 7- 31- 47+	-2 3- -3 7- -4 -3 -2 -4
Curve Equation t Generators 91791g1 [0,0,1,1761,-16160] 1 [67:634:1]&[13:94:1]
91791h (4 curves)	1	3- 7- 31- 47-	1 3- -2 7-  0  2  6 -4
Curve Equation t Generators 91791h1 [1,-1,0,-3438,1099359] 2 [-86:911:1] 91791h2 [1,-1,0,-182043,29711880] 4 [-168:7536:1] 91791h3 [1,-1,0,-315288,-19455525] 2 [-14700:416175:64] 91791h4 [1,-1,0,-2906478,1907937369] 2 [-672:59979:1]

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

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