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 '1491024032707213450223722253188902731542712929088650406321014991494034352616201043282481787154515676361942685665457177438575291257687355984584241129020873317148601041493238225338817579636136445401242659464187841191743416312113748854694588876236274300183441880143700581161820660556458768041143854198490424792169318450229701432246065678814999809011841965258259246892258112599884482829507558338333335981192573414765201262320874882136672709319869039658132299485974749205039513232425197734578277690635529462564891133456871905816855691463117329360357347406410972811384855130525381044729832715168789190999' --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":"1491024032707213450223722253188902731542712929088650406321014991494034352616201043282481787154515676361942685665457177438575291257687355984584241129020873317148601041493238225338817579636136445401242659464187841191743416312113748854694588876236274300183441880143700581161820660556458768041143854198490424792169318450229701432246065678814999809011841965258259246892258112599884482829507558338333335981192573414765201262320874882136672709319869039658132299485974749205039513232425197734578277690635529462564891133456871905816855691463117329360357347406410972811384855130525381044729832715168789190999"},"decimal":false,"detail":2}}'