The database currently contains 358,319 elliptic curves in 154,706 isogeny classes, over 396 number fields (not including $\mathbb{Q}$) of degree up to 6.

Find a specific curve by label

e.g. 2.2.5.1-31.1-a1

Search

Please enter a value or leave blank:

 base number field e.g. 2.2.5.1 or Qsqrt5 base change curves exclude include Q_curves include exclude only conductor norm e.g. 31 or 1-100 isogenous curves exclude include CM curves include exclude only j-invariant e.g. 105474/49 + a*34213/49 over 2.0.7.1 torsion order e.g. 2 torsion structure any trivial $C_{2}$ $C_{2}\times C_{2}$ $C_{2}\times C_{4}$ $C_{2}\times C_{6}$ $C_{2}\times C_{8}$ $C_{2}\times C_{10}$ $C_{2}\times C_{12}$ $C_{2}\times C_{14}$ $C_{2}\times C_{16}$ $C_{2}\times C_{18}$ $C_{3}$ $C_{3}\times C_{3}$ $C_{3}\times C_{6}$ $C_{4}$ $C_{4}\times C_{4}$ $C_{5}$ $C_{6}$ $C_{7}$ $C_{8}$ $C_{9}$ $C_{10}$ $C_{11}$ $C_{12}$ $C_{13}$ $C_{14}$ $C_{15}$ $C_{16}$ $C_{17}$ $C_{18}$ $C_{19}$ $C_{20}$ $C_{21}$ $C_{22}$ $C_{25}$ $C_{27}$ $C_{37}$ isogeny degree e.g. 16 Maximum number of curves to display