Cremona's table of elliptic curves

31423 = 7 · 67²

Class	r	Atkin-Lehner	Eigenvalues
31423a (1 curve)	1	7+ 67+	1 -2  0 7+  3  2  4  2
Curve Equation t Generators 31423a1 [1,0,1,31329,1425317] 1 [49196485:957585017:274625]
31423b (1 curve)	1	7- 67-	1  3 -1 7-  0 -3  0 -4
Curve Equation t Generators 31423b1 [1,-1,0,-52465,-4601716] 1 [-329262840:401767334:2460375]
31423c (1 curve)	1	7- 67-	-1 -1  3 7-  0  1 -8  8
Curve Equation t Generators 31423c1 [1,1,1,-356969,80492994] 1 [262:2113:1]
31423d (1 curve)	1	7- 67-	-1  2  0 7- -3 -2  4  2
Curve Equation t Generators 31423d1 [1,1,1,7,-2] 1 [8:21:1]

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

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