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 '1383597435902615826939854549699418874553985318558853249257829517067699964430744151086454689308859727365340264070364651699105530005819668535513324352255787521151108964053687978162487985129128261404647867669253723707496540710229816033519073759758888684565342399052551097166020221216457021241573436012235213818709665075256658907412004638023645312666098611891096114207133462869702925462681046136971367255712793950813493575142408306188057884967014589533152727309039500964934349203378007297702785656548582826860424688574485190702707745577902408722042994730502738505013789223155403786965122627265760590020593133371388859387796788783955679429012960979516030632863319323189801028293394848643357083944160378896416787585360509883628729548106733948044292515050566717340212604002614600611663654974843242975939083922699833356421190499350379606854585053591573708759487088882053296165456549789070454380456875916448727214120147904636131578167017043443431153661552681577952351963000506493752399784466730799299697810571688618982308520891776787' --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":"1383597435902615826939854549699418874553985318558853249257829517067699964430744151086454689308859727365340264070364651699105530005819668535513324352255787521151108964053687978162487985129128261404647867669253723707496540710229816033519073759758888684565342399052551097166020221216457021241573436012235213818709665075256658907412004638023645312666098611891096114207133462869702925462681046136971367255712793950813493575142408306188057884967014589533152727309039500964934349203378007297702785656548582826860424688574485190702707745577902408722042994730502738505013789223155403786965122627265760590020593133371388859387796788783955679429012960979516030632863319323189801028293394848643357083944160378896416787585360509883628729548106733948044292515050566717340212604002614600611663654974843242975939083922699833356421190499350379606854585053591573708759487088882053296165456549789070454380456875916448727214120147904636131578167017043443431153661552681577952351963000506493752399784466730799299697810571688618982308520891776787"},"decimal":false,"detail":2}}'