Cremona's table of elliptic curves

19908 = 2² · 3² · 7 · 79

Class	r	Atkin-Lehner	Eigenvalues
19908a (1 curve)	1	2- 3+ 7+ 79-	2- 3+  1 7+  0 -4  2  6
Curve Equation t Generators 19908a1 [0,0,0,-4752,127332] 1 [36:54:1]
19908b (1 curve)	1	2- 3+ 7+ 79-	2- 3+ -1 7+  0 -4 -2  6
Curve Equation t Generators 19908b1 [0,0,0,-528,-4716] 1 [117:1239:1]
19908c (2 curves)	1	2- 3+ 7+ 79-	2- 3+  2 7+  0  2 -2 -6
Curve Equation t Generators 19908c1 [0,0,0,-264,765] 2 [-126:255:8] 19908c2 [0,0,0,921,5742] 2 [-3110:53363:1000]
19908d (2 curves)	1	2- 3+ 7+ 79-	2- 3+ -2 7+  0  2  2 -6
Curve Equation t Generators 19908d1 [0,0,0,-2376,-20655] 2 [-36:135:1] 19908d2 [0,0,0,8289,-155034] 2 [43:530:1]
19908e (2 curves)	1	2- 3- 7- 79-	2- 3-  2 7-  6 -2 -6 -2
Curve Equation t Generators 19908e1 [0,0,0,-46164,-3817375] 2 [32170:145123:125] 19908e2 [0,0,0,-49719,-3195250] 2 [-113:990:1]
19908f (2 curves)	1	2- 3- 7- 79-	2- 3- -2 7-  2 -6  0 -4
Curve Equation t Generators 19908f1 [0,0,0,204,4849] 2 [-4:63:1] 19908f2 [0,0,0,-3351,69550] 2 [-37:378:1]
19908g (1 curve)	1	2- 3- 7- 79-	2- 3- -3 7-  0  0 -4  4
Curve Equation t Generators 19908g1 [0,0,0,-264,7796] 1 [13:81:1]

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