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 '101206544915559007853684334915126045539037112015440019269921491440593631444713604070550091865084250688519421195237333268931383985424488751176667371592529617645548232763427022963367763557405266632664073381220216683487115046470101457025932828586605138743702205911120941398069812248911018525899169460256874575994209362566279997835399303464129773160204882488554381851202486632566393738133236405859923550726083910592600713851906525189351039620483117979231773320599376465449832558238365430080485640644513979874115962132593422402512266196719664576140394098403658755959110223906191461913872380658682980172157625097158729519192195472391413877373317826797827044582126048919137181262325395226924876167360725614875714288996319903917017773602834907580785373706702396403828120902334562472794264058652331529173865580992830747913521729803249603325361082185799373714965592890045478718296835499511912390540463293039872856765150237211791432931197880969860664881293179178642962018822740425697185893738226216760029065421741194921917432996601223234800816497036174290059424026938412527393522462216774649831539277298213051659556788380602000442530186721553905806891877339585301327270300217226595609760310182763025306980469140498168480806906533130441354245471976035600021498136171355600024905894393770688317297878502951201562475756537493899537455011908062014048712933567725730046498097157376667539880760050460324077292592252698503672238597066980938594108072852917079' --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":"101206544915559007853684334915126045539037112015440019269921491440593631444713604070550091865084250688519421195237333268931383985424488751176667371592529617645548232763427022963367763557405266632664073381220216683487115046470101457025932828586605138743702205911120941398069812248911018525899169460256874575994209362566279997835399303464129773160204882488554381851202486632566393738133236405859923550726083910592600713851906525189351039620483117979231773320599376465449832558238365430080485640644513979874115962132593422402512266196719664576140394098403658755959110223906191461913872380658682980172157625097158729519192195472391413877373317826797827044582126048919137181262325395226924876167360725614875714288996319903917017773602834907580785373706702396403828120902334562472794264058652331529173865580992830747913521729803249603325361082185799373714965592890045478718296835499511912390540463293039872856765150237211791432931197880969860664881293179178642962018822740425697185893738226216760029065421741194921917432996601223234800816497036174290059424026938412527393522462216774649831539277298213051659556788380602000442530186721553905806891877339585301327270300217226595609760310182763025306980469140498168480806906533130441354245471976035600021498136171355600024905894393770688317297878502951201562475756537493899537455011908062014048712933567725730046498097157376667539880760050460324077292592252698503672238597066980938594108072852917079"},"decimal":false,"detail":2}}'