Cremona's table of elliptic curves

25308 = 2² · 3² · 19 · 37

Class	r	Atkin-Lehner	Eigenvalues
25308a (2 curves)	0	2- 3+ 19- 37-	2- 3+  4  4 -4  2 -4 19-
Curve Equation t 25308a1 [0,0,0,9072,-139455] 2 25308a2 [0,0,0,-39663,-1162890] 2
25308b (2 curves)	0	2- 3+ 19- 37-	2- 3+ -4  4  4  2  4 19-
Curve Equation t 25308b1 [0,0,0,1008,5165] 2 25308b2 [0,0,0,-4407,43070] 2
25308c (1 curve)	1	2- 3- 19+ 37+	2- 3- -1  1  3 -2 -3 19+
Curve Equation t Generators 25308c1 [0,0,0,-6168,-188876] 1 [5828:4329:64]
25308d (1 curve)	1	2- 3- 19+ 37+	2- 3- -2 -3 -5  2  0 19+
Curve Equation t Generators 25308d1 [0,0,0,-29496,-974716] 1 [-136:722:1]
25308e (2 curves)	2	2- 3- 19+ 37-	2- 3-  0 -4 -2 -2 -4 19+
Curve Equation t Generators 25308e1 [0,0,0,-2100,37577] 2 [-41:234:1]&[-16:259:1] 25308e2 [0,0,0,-33735,2384894] 2 [103:54:1]&[-2:1566:1]
25308f (1 curve)	0	2- 3- 19- 37+	2- 3-  2  5  3 -2 -2 19-
Curve Equation t 25308f1 [0,0,0,-1344,-18812] 1
25308g (2 curves)	1	2- 3- 19- 37-	2- 3-  4 -4 -2 -2  0 19-
Curve Equation t Generators 25308g1 [0,0,0,4452,126925] 2 [27655:431946:125] 25308g2 [0,0,0,-27183,1234150] 2 [6667230:83564711:27000]

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