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 '7765071430531978533450372036253087920656344124456161627887816912346779696265709699772274259390633319267929799315544797081422627577015141285830097563720077865708233375900321187917447329576983205959624703137804640998567985924266491512220777561177962667557030833729108785372118477397073243326447882559942194682655802283630691413085106789111703395377682163734150493733626725417299808611750336349542227359711707117686782610030318350921166370462261373733683840812178382002069001747969079473010340416011951314297851633011410112554831434647640307482756544177992186398504213046823507799583834533434404323817192115729168418553592177953728196477529338590101694453449058320500076054997819095956448191117238114786742616839636762577449177959567681996861251498396680116694388602214096795328092854397972266833496600734918753254097889834710468520360690968522360851811519042409025857932553809886956651636333931622921557207241180967776868842717307066333187030287270128480611896651614032553799363129476351015436454689983509668382371534198894837258987278002870769911378846489786675797336306855199849766621132231914125119404515723389859425546895132405729759672936964692698921383105374515947096772949629533603229725884798182044198484574103269927246787124850867842535109052028427434707285047046814661435851763777578363013820724338326211133467452203143025602608913103384642401647799717238878111936118393044775949773631512243897951648725329855551358247386573842610941698083590443560098890749311661' --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":"7765071430531978533450372036253087920656344124456161627887816912346779696265709699772274259390633319267929799315544797081422627577015141285830097563720077865708233375900321187917447329576983205959624703137804640998567985924266491512220777561177962667557030833729108785372118477397073243326447882559942194682655802283630691413085106789111703395377682163734150493733626725417299808611750336349542227359711707117686782610030318350921166370462261373733683840812178382002069001747969079473010340416011951314297851633011410112554831434647640307482756544177992186398504213046823507799583834533434404323817192115729168418553592177953728196477529338590101694453449058320500076054997819095956448191117238114786742616839636762577449177959567681996861251498396680116694388602214096795328092854397972266833496600734918753254097889834710468520360690968522360851811519042409025857932553809886956651636333931622921557207241180967776868842717307066333187030287270128480611896651614032553799363129476351015436454689983509668382371534198894837258987278002870769911378846489786675797336306855199849766621132231914125119404515723389859425546895132405729759672936964692698921383105374515947096772949629533603229725884798182044198484574103269927246787124850867842535109052028427434707285047046814661435851763777578363013820724338326211133467452203143025602608913103384642401647799717238878111936118393044775949773631512243897951648725329855551358247386573842610941698083590443560098890749311661"},"decimal":false,"detail":2}}'