Cremona's table of elliptic curves

31240 = 2³ · 5 · 11 · 71

Class	r	Atkin-Lehner	Eigenvalues
31240a (2 curves)	1	2+ 5- 11- 71+	2+  0 5- -4 11- -2 -6  0
Curve Equation t Generators 31240a1 [0,0,0,-302,1121] 2 [-8:55:1] 31240a2 [0,0,0,-4207,104994] 2 [43:60:1]
31240b (4 curves)	0	2+ 5- 11- 71-	2+  0 5-  4 11- -2  2 -4
Curve Equation t 31240b1 [0,0,0,-204362,-34948159] 4 31240b2 [0,0,0,-3254167,-2259475926] 4 31240b3 [0,0,0,-3238547,-2282240514] 2 31240b4 [0,0,0,-52066667,-144606488426] 2
31240c (1 curve)	0	2+ 5- 11- 71-	2+  1 5-  1 11- -3  2  5
Curve Equation t 31240c1 [0,1,0,-16600,-828752] 1
31240d (1 curve)	2	2+ 5- 11- 71-	2+ -2 5- -1 11- -5 -6 -3
Curve Equation t Generators 31240d1 [0,1,0,-11505,1191475] 1 [-135:550:1]&[-85:1250:1]
31240e (2 curves)	0	2- 5+ 11+ 71+	2-  0 5+ -2 11+  4 -4  4
Curve Equation t 31240e1 [0,0,0,-7958,-270203] 2 31240e2 [0,0,0,-1303,-708102] 2
31240f (1 curve)	1	2- 5+ 11- 71+	2-  0 5+  1 11-  5  2 -5
Curve Equation t Generators 31240f1 [0,0,0,52,68] 1 [1:11:1]
31240g (2 curves)	1	2- 5+ 11- 71+	2-  0 5+ -2 11- -4 -4 -8
Curve Equation t Generators 31240g1 [0,0,0,-7558,-3549507] 2 [63854:419427:343] 31240g2 [0,0,0,-398183,-95971382] 2 [-387:406:1]

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

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