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 '4345449453777671610389397925542055085901535202009468172890856073384406281544451019526979782512553204599244627336889383362995021163863676218907199108173101467321422566565526433484526789071018054069274360191047768478878133037930137043404326789522921898667293301961888971568301485954601170561374599539455589485536372721250093960403695050379995625459693421792214643953242573313123178449826633780375063791461928472728238937628609048644125178428176094491363768452737441528001607711656419472142044240870422476956783006933768126535676699965261590039816077078560514075894850240837000468159827878514088573244900798764978698991193331207431697996612832187089037117220613501434752148422924655355853189096501879512730556748616608557254044784054829333510612603745253197305259640656205508802166964064507377584695651401103318296470790531794716036915958646102146241121864975274377314402371746958109162243404717482655786739376175227340453090739220331242059781541149575812450863' --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":"4345449453777671610389397925542055085901535202009468172890856073384406281544451019526979782512553204599244627336889383362995021163863676218907199108173101467321422566565526433484526789071018054069274360191047768478878133037930137043404326789522921898667293301961888971568301485954601170561374599539455589485536372721250093960403695050379995625459693421792214643953242573313123178449826633780375063791461928472728238937628609048644125178428176094491363768452737441528001607711656419472142044240870422476956783006933768126535676699965261590039816077078560514075894850240837000468159827878514088573244900798764978698991193331207431697996612832187089037117220613501434752148422924655355853189096501879512730556748616608557254044784054829333510612603745253197305259640656205508802166964064507377584695651401103318296470790531794716036915958646102146241121864975274377314402371746958109162243404717482655786739376175227340453090739220331242059781541149575812450863"},"decimal":false,"detail":2}}'