Cremona's table of elliptic curves

9982 = 2 · 7 · 23 · 31

Class	r	Atkin-Lehner	Eigenvalues
9982a (2 curves)	1	2+ 7+ 23+ 31+	2+  0  0 7+ -2  6 -6  2
Curve Equation t Generators 9982a1 [1,-1,0,-2392,-44436] 2 [70:322:1] 9982a2 [1,-1,0,-2402,-44038] 2 [-29:39:1]
9982b (2 curves)	0	2+ 7+ 23- 31+	2+  0  0 7+ -2 -2  2  6
Curve Equation t 9982b1 [1,-1,0,444593,-58007187] 2 9982b2 [1,-1,0,-2015567,-490503315] 2
9982c (4 curves)	1	2- 7+ 23- 31+	2-  0 -2 7+  0  2  2 -4
Curve Equation t Generators 9982c1 [1,-1,1,11279,532641] 4 [-9:660:1] 9982c2 [1,-1,1,-70641,5284001] 4 [-199:3480:1] 9982c3 [1,-1,1,-409201,-96419423] 2 [1733:65442:1] 9982c4 [1,-1,1,-1042801,410091425] 2 [543:1660:1]
9982d (2 curves)	1	2- 7+ 23- 31+	2- -2 -2 7+ -2 -4  6  0
Curve Equation t Generators 9982d1 [1,0,0,-6228009,-7064625191] 2 [3450:110147:1] 9982d2 [1,0,0,-104572969,-411596783655] 2 [-5882:5195:1]
9982e (2 curves)	1	2- 7- 23- 31-	2- -2 -2 7-  2  0 -2  4
Curve Equation t Generators 9982e1 [1,0,0,-3394,75204] 2 [40:42:1] 9982e2 [1,0,0,-5954,-54332] 2 [-18:226:1]

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

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