Cremona's table of elliptic curves

61640 = 2³ · 5 · 23 · 67

Class	r	Atkin-Lehner	Eigenvalues
61640a (4 curves)	0	2+ 5+ 23- 67+	2+  0 5+  0 -4  6 -6  4
Curve Equation t 61640a1 [0,0,0,382,3017] 4 61640a2 [0,0,0,-2263,28938] 4 61640a3 [0,0,0,-13763,-598962] 2 61640a4 [0,0,0,-33083,2315782] 2
61640b (1 curve)	2	2+ 5+ 23- 67+	2+ -2 5+ -5 -1 -6  4 -4
Curve Equation t Generators 61640b1 [0,1,0,-43976,-3597200] 1 [299:3174:1]&[391:6256:1]
61640c (1 curve)	1	2+ 5- 23+ 67-	2+ -1 5-  2 -2 -1  6 -8
Curve Equation t Generators 61640c1 [0,-1,0,-26540,1684237] 1 [-46:1675:1]
61640d (1 curve)	1	2- 5- 23+ 67+	2-  2 5- -3  5 -2 -4  4
Curve Equation t Generators 61640d1 [0,-1,0,24080,-545268] 1 [69:1200:1]

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

Part of Computational Number Theory
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