Properties

Label 280.120.4-280.bx.1.32
Level $280$
Index $120$
Genus $4$
Cusps $4$
$\Q$-cusps $2$

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Invariants

Level: $280$ $\SL_2$-level: $40$ Newform level: $1$
Index: $120$ $\PSL_2$-index:$60$
Genus: $4 = 1 + \frac{ 60 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 4 }{2}$
Cusps: $4$ (of which $2$ are rational) Cusp widths $5^{2}\cdot10\cdot40$ Cusp orbits $1^{2}\cdot2$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $3 \le \gamma \le 4$
$\overline{\Q}$-gonality: $3 \le \gamma \le 4$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 40B4

Level structure

$\GL_2(\Z/280\Z)$-generators: $\begin{bmatrix}114&259\\109&276\end{bmatrix}$, $\begin{bmatrix}152&219\\57&22\end{bmatrix}$, $\begin{bmatrix}176&147\\163&144\end{bmatrix}$, $\begin{bmatrix}199&6\\210&247\end{bmatrix}$, $\begin{bmatrix}274&131\\253&148\end{bmatrix}$
Contains $-I$: no $\quad$ (see 280.60.4.bx.1 for the level structure with $-I$)
Cyclic 280-isogeny field degree: $96$
Cyclic 280-torsion field degree: $9216$
Full 280-torsion field degree: $12386304$

Rational points

This modular curve has 2 rational cusps but no known non-cuspidal rational points.

Modular covers

The following modular covers realize this modular curve as a fiber product over $X(1)$.

Factor curve Level Index Degree Genus Rank
$X_{S_4}(5)$ $5$ $24$ $12$ $0$ $0$
56.24.0-56.z.1.8 $56$ $5$ $5$ $0$ $0$

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
40.60.2-20.c.1.9 $40$ $2$ $2$ $2$ $0$
56.24.0-56.z.1.8 $56$ $5$ $5$ $0$ $0$
280.60.2-20.c.1.4 $280$ $2$ $2$ $2$ $?$

This modular curve is minimally covered by the modular curves in the database listed below.

Covering curve Level Index Degree Genus
280.240.8-280.bl.1.30 $280$ $2$ $2$ $8$
280.240.8-280.bp.1.12 $280$ $2$ $2$ $8$
280.240.8-280.cb.1.7 $280$ $2$ $2$ $8$
280.240.8-280.cc.1.12 $280$ $2$ $2$ $8$
280.240.8-280.db.1.16 $280$ $2$ $2$ $8$
280.240.8-280.dd.1.16 $280$ $2$ $2$ $8$
280.240.8-280.dj.1.16 $280$ $2$ $2$ $8$
280.240.8-280.dl.1.12 $280$ $2$ $2$ $8$
280.240.8-280.dv.1.10 $280$ $2$ $2$ $8$
280.240.8-280.dw.1.16 $280$ $2$ $2$ $8$
280.240.8-280.ek.1.10 $280$ $2$ $2$ $8$
280.240.8-280.en.1.12 $280$ $2$ $2$ $8$
280.240.8-280.ff.1.16 $280$ $2$ $2$ $8$
280.240.8-280.fg.1.12 $280$ $2$ $2$ $8$
280.240.8-280.fm.1.16 $280$ $2$ $2$ $8$
280.240.8-280.fp.1.16 $280$ $2$ $2$ $8$
280.360.10-280.cv.1.47 $280$ $3$ $3$ $10$
280.480.13-280.bob.1.32 $280$ $4$ $4$ $13$