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 '489163113032975984818597365183153775958853169375650966410265861970781600018234997685805970426598758276863143479155808408286381886972501948872492998923625957446003497487291725904452608683473378526061156329973700279026538292541561930136103810732906241645143853630346611618427180025798756091040902646524773604962627676359381348605540560281760825283497448157018917471611946999714603999802130862593548196407746303713933039264941464579449852408317482773616671193674814820124545365472656543484543543517114784660435711544159339366855797623529479289571636153689100328866087840880481260571381815032223181317890010418650382691290318530139917536722961510855147821075634407248559327178700468510816312191840766183922735462241454012692104433985435222976890296324485528317302315198879771130815010316336851199465119566967714240307832370485760608870302932195589419247132066662344615021920571201299143324237199402980376970397440771335289630422599834904957842122710160292652430467399175427889738983184054256004047952254253033024921285583256233749807344686907242620419506699369' --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":"489163113032975984818597365183153775958853169375650966410265861970781600018234997685805970426598758276863143479155808408286381886972501948872492998923625957446003497487291725904452608683473378526061156329973700279026538292541561930136103810732906241645143853630346611618427180025798756091040902646524773604962627676359381348605540560281760825283497448157018917471611946999714603999802130862593548196407746303713933039264941464579449852408317482773616671193674814820124545365472656543484543543517114784660435711544159339366855797623529479289571636153689100328866087840880481260571381815032223181317890010418650382691290318530139917536722961510855147821075634407248559327178700468510816312191840766183922735462241454012692104433985435222976890296324485528317302315198879771130815010316336851199465119566967714240307832370485760608870302932195589419247132066662344615021920571201299143324237199402980376970397440771335289630422599834904957842122710160292652430467399175427889738983184054256004047952254253033024921285583256233749807344686907242620419506699369"},"decimal":false,"detail":2}}'