Elliptic curve isogeny class with LMFDB label 171.a (Cremona label 171a)

• Label: 171.a
• Number of curves: $4$
• Conductor: $171$
• CM: no
• Rank: $0$

Elliptic curves in class 171.a

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality
171.a1	171a3	\([1, -1, 1, -914, -10402]\)	\(115714886617/1539\)	\(1121931\)	\([2]\)	\(48\)	\(0.30430\)
171.a2	171a2	\([1, -1, 1, -59, -142]\)	\(30664297/3249\)	\(2368521\)	\([2, 2]\)	\(24\)	\(-0.042276\)
171.a3	171a1	\([1, -1, 1, -14, 20]\)	\(389017/57\)	\(41553\)	\([4]\)	\(12\)	\(-0.38885\)	\(\Gamma_0(N)\)-optimal
171.a4	171a4	\([1, -1, 1, 76, -790]\)	\(67419143/390963\)	\(-285012027\)	\([2]\)	\(48\)	\(0.30430\)

Rank

The elliptic curves in class 171.a have rank \(0\).

Complex multiplication

The elliptic curves in class 171.a do not have complex multiplication.

Modular form 171.2.a.a

Isogeny matrix

The \(i,j\) entry is the smallest degree of a cyclic isogeny between the \(i\)-th and \(j\)-th curve in the isogeny class, in the LMFDB numbering.

\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)

Isogeny graph

The vertices are labelled with LMFDB labels.