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 '133844547329657810906609776793684904872678835811777079271374868668539424496339127803633675463769669942614835232778945646812676143680468077142646785837843677474547653702508503638982842684363057254444422202304674543373684904376689164014284485845497896521002253369783408205188283629754807372109200043034996180965887420200910021882854037400981618159806333385101054749301552812439933145100469778164043709848298445411243033606333475738020691830125822045792751869847003626216655307243231866984801274799018774203414447742279587709651150797943094019588971917505388868938226496778640932080763003787369086870755759150172296203689006755692001625986220254462323472335339629665940700482683658409468013708279465649418201853787355690370131411448102628172708990176053332715579448884168041132863972309756600973830271313215385705665709935044271612043273522330652509426509975366486550418755499766060293361367771379461071991663258535521013815640418792186811676725485238425548033451140335404225644626008991354103719097416890673136634701791013599720542531577500446738234588432975321644198647005431618908619909945690127518892189645979391128684873497326417568906783175523130599967614657741112309718494235081692276618459614922913920475470830649181834438043474597646798601906338876650011724690947497401601548347829648393572413' --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":"133844547329657810906609776793684904872678835811777079271374868668539424496339127803633675463769669942614835232778945646812676143680468077142646785837843677474547653702508503638982842684363057254444422202304674543373684904376689164014284485845497896521002253369783408205188283629754807372109200043034996180965887420200910021882854037400981618159806333385101054749301552812439933145100469778164043709848298445411243033606333475738020691830125822045792751869847003626216655307243231866984801274799018774203414447742279587709651150797943094019588971917505388868938226496778640932080763003787369086870755759150172296203689006755692001625986220254462323472335339629665940700482683658409468013708279465649418201853787355690370131411448102628172708990176053332715579448884168041132863972309756600973830271313215385705665709935044271612043273522330652509426509975366486550418755499766060293361367771379461071991663258535521013815640418792186811676725485238425548033451140335404225644626008991354103719097416890673136634701791013599720542531577500446738234588432975321644198647005431618908619909945690127518892189645979391128684873497326417568906783175523130599967614657741112309718494235081692276618459614922913920475470830649181834438043474597646798601906338876650011724690947497401601548347829648393572413"},"decimal":false,"detail":2}}'