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 '1268796598932536805025730105609599149833938902327179336779010424045616313602710477857144483094246343954497541065323579338082082214596401704804268487617974439666817058940602662007538209479927937815020222417224215820086919700728438725856110771196726073899775850194855660864136033703818239957438186917439321345839020650809710237603646312747329219426742772206190640319612070651179255909338075996915275139861449259373198592048919154561637543476559549956751616000251037257718537358178400820737831164491296200885199173725948761568887789453945439302309482088521263910623312253426114905200996854265785301356611956416173640198507463046329576922124144631672058173968352011043505381991545687571763489768835735321425551159989135874322501902411436052789448999383000817290433503455035180858882448864010117033319300231829898167347713341556743332786231684429422074413313063128238124200108490620678685809400345537918471258906464031365087500994814562776278402115698086140721160527010803507403857313189471387741594325723808007446437157884692767648103990085488236696653878021684752285406397206430468290626807059965724638980878048952718341556050489571807266405123260351292688024779440667537' --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":"1268796598932536805025730105609599149833938902327179336779010424045616313602710477857144483094246343954497541065323579338082082214596401704804268487617974439666817058940602662007538209479927937815020222417224215820086919700728438725856110771196726073899775850194855660864136033703818239957438186917439321345839020650809710237603646312747329219426742772206190640319612070651179255909338075996915275139861449259373198592048919154561637543476559549956751616000251037257718537358178400820737831164491296200885199173725948761568887789453945439302309482088521263910623312253426114905200996854265785301356611956416173640198507463046329576922124144631672058173968352011043505381991545687571763489768835735321425551159989135874322501902411436052789448999383000817290433503455035180858882448864010117033319300231829898167347713341556743332786231684429422074413313063128238124200108490620678685809400345537918471258906464031365087500994814562776278402115698086140721160527010803507403857313189471387741594325723808007446437157884692767648103990085488236696653878021684752285406397206430468290626807059965724638980878048952718341556050489571807266405123260351292688024779440667537"},"decimal":false,"detail":2}}'