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 '745750207477827732325348133850430837522914705366964820907431040883067694638353627202331207461338851361340964419282588047613475637097074806472671171006819925833772798284668486145502115385308035528568940476959905183559443300338100495149930011277029879656114998778547658794601677125239513221272484531361757408680084975787211833948392089838809320226778933297687493687498375602526787341238331206432538825472491774289640177324453137725208345644399450019734653332917907466236299414427880649655830695912021203517601160775832308096152112504753777626678221579086978819031345765407273197635849549574964026908738754818584383204091643750400779330397047232243819842574616914591676447937839102291555013176723975036694129136060019981993914396254751491616524791912567185740959810938323965229843517037775255187601248113767926999623656242012627437998505083785161778715656066771616637654939586054297870532797275680990828832956149302692578894252472001947141479937402344896306235782044415187826017850779594856684845572002837189921791754630001215808515978840316403621023388869007252600371156352827818615610298853925394438259461684627899594948478658090983085075096838988851706722843983' --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":"745750207477827732325348133850430837522914705366964820907431040883067694638353627202331207461338851361340964419282588047613475637097074806472671171006819925833772798284668486145502115385308035528568940476959905183559443300338100495149930011277029879656114998778547658794601677125239513221272484531361757408680084975787211833948392089838809320226778933297687493687498375602526787341238331206432538825472491774289640177324453137725208345644399450019734653332917907466236299414427880649655830695912021203517601160775832308096152112504753777626678221579086978819031345765407273197635849549574964026908738754818584383204091643750400779330397047232243819842574616914591676447937839102291555013176723975036694129136060019981993914396254751491616524791912567185740959810938323965229843517037775255187601248113767926999623656242012627437998505083785161778715656066771616637654939586054297870532797275680990828832956149302692578894252472001947141479937402344896306235782044415187826017850779594856684845572002837189921791754630001215808515978840316403621023388869007252600371156352827818615610298853925394438259461684627899594948478658090983085075096838988851706722843983"},"decimal":false,"detail":2}}'