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 '7371722089298530628266338546727244523689035017617888636262821806941601587909413075462642016354772218007424156502964259791901667007317268288859301152535719288832778054574980145931802247805583719257371122668376546679293191878909841946787826520883327527336282412923708903762734097194435758998001286620821809796072548442809886716757726783225455231380014798299160888157360895534796502652827765223637310888085368449148953578360992739282636374038897514451668678177386619904973341155459370111517380030881850820166329991168628585481565377114035083165295397398186928705857534575634967750881762803747278348818357580719355156985918212970715553665046023283731209283117608132661596527095445364226930458875101689480475591944470304275527191295647716976308852076643207013727425958330103221049048198252127928642659903159994531672466170544537242692914871610707364600189121131602048573745002570102800772955119267319469597327962685101474699042667968686807797145504522577960507538421882491015573235056838629624070644631869708883965818852715656877726175799341913587182402395772250890592407044669823927502986128455340584570085197834689893172112530363506727430654645078558374056195961239051435719201165131822766254019585488500875318251231518701711970842122632942008643091355223' --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":"7371722089298530628266338546727244523689035017617888636262821806941601587909413075462642016354772218007424156502964259791901667007317268288859301152535719288832778054574980145931802247805583719257371122668376546679293191878909841946787826520883327527336282412923708903762734097194435758998001286620821809796072548442809886716757726783225455231380014798299160888157360895534796502652827765223637310888085368449148953578360992739282636374038897514451668678177386619904973341155459370111517380030881850820166329991168628585481565377114035083165295397398186928705857534575634967750881762803747278348818357580719355156985918212970715553665046023283731209283117608132661596527095445364226930458875101689480475591944470304275527191295647716976308852076643207013727425958330103221049048198252127928642659903159994531672466170544537242692914871610707364600189121131602048573745002570102800772955119267319469597327962685101474699042667968686807797145504522577960507538421882491015573235056838629624070644631869708883965818852715656877726175799341913587182402395772250890592407044669823927502986128455340584570085197834689893172112530363506727430654645078558374056195961239051435719201165131822766254019585488500875318251231518701711970842122632942008643091355223"},"decimal":false,"detail":2}}'