Cremona's table of elliptic curves

15580 = 2² · 5 · 19 · 41

Class	r	Atkin-Lehner	Eigenvalues
15580a (2 curves)	1	2- 5+ 19- 41+	2-  2 5+ -4  4  2  0 19-
Curve Equation t Generators 15580a1 [0,-1,0,-1301,-15574] 2 [22098:631180:27] 15580a2 [0,-1,0,-5196,129320] 2 [176983260:5043923819:216000]
15580b (2 curves)	0	2- 5+ 19- 41-	2-  1 5+  2  0  5  6 19-
Curve Equation t 15580b1 [0,1,0,-1256581,541749319] 3 15580b2 [0,1,0,-1184421,606779255] 1
15580c (1 curve)	0	2- 5+ 19- 41-	2-  1 5+  2 -4  5 -2 19-
Curve Equation t 15580c1 [0,1,0,-21,-121] 1
15580d (1 curve)	0	2- 5+ 19- 41-	2-  3 5+  4  2 -1  0 19-
Curve Equation t 15580d1 [0,0,0,272,4052] 1
15580e (1 curve)	1	2- 5- 19- 41-	2- -1 5-  2  2 -1 -6 19-
Curve Equation t Generators 15580e1 [0,-1,0,115,217] 1 [-1:10:1]

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

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