Cremona's table of elliptic curves

83993 = 7 · 13² · 71

Class	r	Atkin-Lehner	Eigenvalues
83993a (1 curve)	1	7+ 13+ 71+	-1 -1  0 7+ -1 13+ -2  4
Curve Equation t Generators 83993a1 [1,1,1,4137,-51602] 1 [14:89:1]
83993b (1 curve)	0	7+ 13+ 71-	0 -1  2 7+  0 13+ -4  0
Curve Equation t 83993b1 [0,-1,1,3493,-136992] 1
83993c (1 curve)	0	7+ 13+ 71-	1  0  3 7+  6 13+  3 -6
Curve Equation t 83993c1 [1,-1,0,-3158,-685567] 1
83993d (1 curve)	0	7+ 13+ 71-	2  1 -4 7+  4 13+  0  2
Curve Equation t 83993d1 [0,1,1,-4450,-117945] 1
83993e (1 curve)	2	7- 13+ 71+	-1  0 -3 7-  0 13+ -3 -6
Curve Equation t Generators 83993e1 [1,-1,1,-869199,312139052] 1 [-601:25143:1]&[400:5123:1]
83993f (1 curve)	2	7- 13+ 71+	-1  0 -3 7- -6 13+  3  6
Curve Equation t Generators 83993f1 [1,-1,1,-19,-308] 1 [40:228:1]&[19:67:1]
83993g (1 curve)	1	7- 13+ 71-	1  0 -1 7-  0 13+  7 -2
Curve Equation t Generators 83993g1 [1,-1,0,560,6657] 1 [24:171:1]

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

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