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 '272782793954246360940698734050503328833289672816410672086697399800361876339075913011738926733818382163747949382965620775608475343276785509799453542861832061899713924148241452582503788033002125459779264466144757530654666332494476512187227901347422475443705415037012724130982382057701794102319032745667962986869573273580831719982254109104419905361055180711702712770873481784552963699268756559297690945012881130580857683750160846611897761400246027745850356383413116549787501741189979391779392056686806229667624674756219649619635676439858610940334608699276587443815458481890542913812307295955811216007429972132740496069307551529789159122418893850027426237834806091376754995472301430423211691341661243711773139500902666648374021011534367402873828031464695777744861012598099674863096567759575846095581867615294180834413661524490343761293181231588226924704586570003047688217191153096434202408074778717993445428908003362958030117490928320491018913181804949529938362705916000464887994562696254314898785644797853993860293999374799938959135855400737609539118673911836523829012693872320116395610886500442931414743039423029973251609443262937423916963372220052941288249627886045621322490948777289463765572624487486160947932477969501593279548335965803428636365634997616363183107897081358747518440604155251408416390049119793308480017658598984052696790508511423244986906527862591269378195274011765015953122776280033176968212800238933185648053352428431443178904157030174007520574912908685323093248636425087' --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":"272782793954246360940698734050503328833289672816410672086697399800361876339075913011738926733818382163747949382965620775608475343276785509799453542861832061899713924148241452582503788033002125459779264466144757530654666332494476512187227901347422475443705415037012724130982382057701794102319032745667962986869573273580831719982254109104419905361055180711702712770873481784552963699268756559297690945012881130580857683750160846611897761400246027745850356383413116549787501741189979391779392056686806229667624674756219649619635676439858610940334608699276587443815458481890542913812307295955811216007429972132740496069307551529789159122418893850027426237834806091376754995472301430423211691341661243711773139500902666648374021011534367402873828031464695777744861012598099674863096567759575846095581867615294180834413661524490343761293181231588226924704586570003047688217191153096434202408074778717993445428908003362958030117490928320491018913181804949529938362705916000464887994562696254314898785644797853993860293999374799938959135855400737609539118673911836523829012693872320116395610886500442931414743039423029973251609443262937423916963372220052941288249627886045621322490948777289463765572624487486160947932477969501593279548335965803428636365634997616363183107897081358747518440604155251408416390049119793308480017658598984052696790508511423244986906527862591269378195274011765015953122776280033176968212800238933185648053352428431443178904157030174007520574912908685323093248636425087"},"decimal":false,"detail":2}}'