Cremona's table of elliptic curves

18879 = 3 · 7 · 29 · 31

Class	r	Atkin-Lehner	Eigenvalues
18879a (1 curve)	1	3+ 7- 29+ 31-	1 3+  1 7-  6 -4  1 -1
Curve Equation t Generators 18879a1 [1,1,0,-3342,-16947] 1 [-12:153:1]
18879b (1 curve)	1	3+ 7- 29+ 31-	-2 3+  4 7-  3 -1  4 -1
Curve Equation t Generators 18879b1 [0,-1,1,-15316,-688806] 1 [10222:1033357:1]
18879c (1 curve)	1	3+ 7- 29- 31+	-1 3+  1 7- -2  4 -1 -7
Curve Equation t Generators 18879c1 [1,1,1,-5550,-161232] 1 [-44:35:1]
18879d (1 curve)	2	3+ 7- 29- 31-	-2 3+  0 7- -3 -3 -8  3
Curve Equation t Generators 18879d1 [0,-1,1,-21708,1237214] 1 [2365614:33780947:54872]&[-91:1565:1]
18879e (2 curves)	1	3- 7+ 29- 31+	1 3-  0 7+  2 -4  4  0
Curve Equation t Generators 18879e1 [1,0,1,-171,-23] 2 [95431:1542869:343] 18879e2 [1,0,1,-1886,-31579] 2 [1113:36550:1]
18879f (2 curves)	2	3- 7- 29- 31+	-1 3- -4 7- -6 -4  0 -8
Curve Equation t Generators 18879f1 [1,0,0,-620,-5409] 2 [-14:31:1]&[-11:16:1] 18879f2 [1,0,0,-2335,37466] 2 [-34:296:1]&[-25:296:1]

Data from Elliptic Curve Data by J. E. Cremona.
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