Cremona's table of elliptic curves

123280 = 2⁴ · 5 · 23 · 67

Class	r	Atkin-Lehner	Eigenvalues
123280a (4 curves)	0	2+ 5+ 23+ 67-	2+  0 5+  0  4  6 -6 -4
Curve Equation t 123280a1 [0,0,0,382,-3017] 2 123280a2 [0,0,0,-2263,-28938] 4 123280a3 [0,0,0,-13763,598962] 4 123280a4 [0,0,0,-33083,-2315782] 2
123280b (1 curve)	0	2+ 5+ 23+ 67-	2+  2 5+  5  1 -6  4  4
Curve Equation t 123280b1 [0,-1,0,-43976,3597200] 1
123280c (1 curve)	1	2+ 5- 23- 67+	2+  1 5- -2  2 -1  6  8
Curve Equation t Generators 123280c1 [0,1,0,-26540,-1684237] 1 [6267:58625:27]
123280d (1 curve)	2	2+ 5- 23- 67-	2+ -2 5-  3 -5 -2 -4 -4
Curve Equation t Generators 123280d1 [0,1,0,24080,545268] 1 [-4:670:1]&[31:1150:1]
123280e (1 curve)	1	2- 5+ 23+ 67-	2-  3 5+ -3  2 -2  4  4
Curve Equation t Generators 123280e1 [0,0,0,-13,83] 1 [102:253:27]
123280f (1 curve)	1	2- 5+ 23- 67+	2- -1 5+ -5  2 -6  0  0
Curve Equation t Generators 123280f1 [0,-1,0,-1626,25855] 1 [21:23:1]
123280g (1 curve)	0	2- 5+ 23- 67-	2- -1 5+ -3 -6 -2 -4 -4
Curve Equation t 123280g1 [0,-1,0,-101066,-12397745] 1
123280h (1 curve)	2	2- 5+ 23- 67-	2- -2 5+ -3  1  2  0  8
Curve Equation t Generators 123280h1 [0,1,0,1064,6420] 1 [-4:46:1]&[19:184:1]
123280i (1 curve)	1	2- 5- 23+ 67+	2- -1 5-  2  6 -1  6  0
Curve Equation t Generators 123280i1 [0,-1,0,-70,407] 1 [49:335:1]
123280j (2 curves)	0	2- 5- 23+ 67-	2-  0 5-  0  4 -4 -4 -2
Curve Equation t 123280j1 [0,0,0,-512,4459] 2 123280j2 [0,0,0,-487,4914] 2
123280k (1 curve)	0	2- 5- 23+ 67-	2-  2 5-  3  3 -2 -8  8
Curve Equation t 123280k1 [0,-1,0,-438880,-112720128] 1

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