Cremona's table of elliptic curves

27531 = 3² · 7 · 19 · 23

Class	r	Atkin-Lehner	Eigenvalues
27531a (1 curve)	0	3+ 7- 19+ 23+	-1 3+  2 7- -2 -3  4 19+
Curve Equation t 27531a1 [1,-1,1,646,-3374] 1
27531b (1 curve)	1	3+ 7- 19+ 23-	1 3+ -2 7-  2 -3 -4 19+
Curve Equation t Generators 27531b1 [1,-1,0,72,101] 1 [4:19:1]
27531c (4 curves)	1	3- 7+ 19- 23+	1 3- -2 7+ -4 -2  2 19-
Curve Equation t Generators 27531c1 [1,-1,0,-1113,37664] 2 [20:142:1] 27531c2 [1,-1,0,-24918,1518335] 4 [122:-593:1] 27531c3 [1,-1,0,-32163,569240] 2 [1390:2915:8] 27531c4 [1,-1,0,-398553,96944714] 2 [2990:899:8]
27531d (2 curves)	1	3- 7- 19- 23-	1 3-  0 7- -4 -6  4 19-
Curve Equation t Generators 27531d1 [1,-1,0,-36027,2758360] 2 [1966:22615:8] 27531d2 [1,-1,0,-583542,171721489] 2 [56:11771:1]

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

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