Elliptic curve isogeny class with Cremona label 900c (LMFDB label 900.d)

• Label: 900c
• Number of curves: $2$
• Conductor: $900$
• CM: $\Q(\sqrt{-3})$
• Rank: $1$

Rank

The elliptic curves in class 900c have rank $1$.

L-function data

Bad L-factors:

Prime	L-Factor
$2$	$1$
$3$	$1$
$5$	$1$

Good L-factors:

Prime	L-Factor	Isogeny Class over $\mathbb{F}_p$
$7$	$1 + T + 7 T^{2}$	1.7.b
$11$	$1 + 6 T + 11 T^{2}$	1.11.g
$13$	$1 - 5 T + 13 T^{2}$	1.13.af
$17$	$1 - 6 T + 17 T^{2}$	1.17.ag
$19$	$1 - 5 T + 19 T^{2}$	1.19.af
$23$	$1 - 6 T + 23 T^{2}$	1.23.ag
$29$	$1 - 6 T + 29 T^{2}$	1.29.ag
$\cdots$	$\cdots$	$\cdots$

See L-function page for more information

Complex multiplication

Each elliptic curve in class 900c has complex multiplication by an order in the imaginary quadratic field $\Q(\sqrt{-3})$.

Modular form 900.2.a.c

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 Cremona numbering.

$\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)$

Isogeny graph

The vertices are labelled with Cremona labels.

Elliptic curves in class 900c

LMFDB label	Cremona label	Weierstrass coefficients	j-invariant	Discriminant	Torsion structure	Modular degree	Faltings height	Optimality	CM discriminant
900.d2	900c1	$[0, 0, 0, 0, 100]$	$0$	$-4320000$	$[3]$	$144$	$-0.047887$	$\Gamma_0(N)$-optimal	$-3$
900.d1	900c2	$[0, 0, 0, 0, -2700]$	$0$	$-3149280000$	$[]$	$432$	$0.50142$		$-3$