PRP · Probable prime
Enter a value, an expression, or a term with a variable like 10^n+1 to list a range.
Switch to Database id to look a number up by its stored id.
Reading never stores anything; use Create to add a number to the database.
See the expression syntax & functions reference.
Is factor of
Primality
This is a probable prime: it passes probabilistic tests but is not yet proven.
Build an ECPP certificate (for example with Primo) and upload it - it is stored and verified locally, then the number is promoted to proven prime.
Primo input filedownload .in
From the command linefdb · curl
fdb
fdb number '414909648265998756496272205959287020113521888673033661200249926145195098188441714238909152775531537343739584967892836827609996224899099799238359852476747176987958034319987623382169544406444132431829352732727445775646012817195561935181512349600427197930533637897321297187206384964288370464833039193900044267709831669939915127704863436078935931311088155204979117339939924019387258637325801671940714224770576728724364710163145362943948801440230746431654180665337283640560375595759057027055304647283865533441978632787579300055345169663917144226979723661636894174473121552088866064550419280538354615841360835081484449519249504194592881014279296449349968121298489771305043105962387893282092080535568220141384386565521078622376211267336778155287994564734898187638731972379340826906373178024272919983521685233066683430700793205749424845261396998948589639129762933264141819358587' --detail 2
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"expr":"414909648265998756496272205959287020113521888673033661200249926145195098188441714238909152775531537343739584967892836827609996224899099799238359852476747176987958034319987623382169544406444132431829352732727445775646012817195561935181512349600427197930533637897321297187206384964288370464833039193900044267709831669939915127704863436078935931311088155204979117339939924019387258637325801671940714224770576728724364710163145362943948801440230746431654180665337283640560375595759057027055304647283865533441978632787579300055345169663917144226979723661636894174473121552088866064550419280538354615841360835081484449519249504194592881014279296449349968121298489771305043105962387893282092080535568220141384386565521078622376211267336778155287994564734898187638731972379340826906373178024272919983521685233066683430700793205749424845261396998948589639129762933264141819358587"},"decimal":false,"detail":2}}'