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 '4413974066949215165623038983510880564443086774553971343544929676920079811991987803467790759423283662569773906833661586903626016255120737196830709554552810501786679207866941376571477804735946632572395815553111297357729349977111651014094052294085610212618306980171200211475913209645639258524709937270940370611386251009754024385299423215301431927496542254142960302841034368481476156454384294585842262270724213618518424725018644810240786576414939159999427315792975286313666838733897156773709044731407723122211505923954938686878020840540446370199603857912067550649820844499811385081539605337531902986949947701772184412700036999554620717431837808179529154133059029309213840021170069481399536941785491590900351885126196056248665647843880625025875242019159883637651245909393835915868314378267407914974431201396948265535050303371979486509678034033783562102769826305626496053123909966638209647272326509066062135066739498947365238554980972403552855908949750306850419664062973439674057407152160647991313577994707403188819525591066452331197886029293115992668279612838567050932160911111522618797267611796914419992790126217156125336948561439071295349508703358250614738818362833854027797018787831448449463' --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":"4413974066949215165623038983510880564443086774553971343544929676920079811991987803467790759423283662569773906833661586903626016255120737196830709554552810501786679207866941376571477804735946632572395815553111297357729349977111651014094052294085610212618306980171200211475913209645639258524709937270940370611386251009754024385299423215301431927496542254142960302841034368481476156454384294585842262270724213618518424725018644810240786576414939159999427315792975286313666838733897156773709044731407723122211505923954938686878020840540446370199603857912067550649820844499811385081539605337531902986949947701772184412700036999554620717431837808179529154133059029309213840021170069481399536941785491590900351885126196056248665647843880625025875242019159883637651245909393835915868314378267407914974431201396948265535050303371979486509678034033783562102769826305626496053123909966638209647272326509066062135066739498947365238554980972403552855908949750306850419664062973439674057407152160647991313577994707403188819525591066452331197886029293115992668279612838567050932160911111522618797267611796914419992790126217156125336948561439071295349508703358250614738818362833854027797018787831448449463"},"decimal":false,"detail":2}}'