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 '297854108219838046223154422291890284309444641282614487152307918605413953263476726926028589324403592007129943194933438520990264688057037699345554807708623304865268462929410150364115133302629606322841591831414210465016519162649404193616648752195724824622393113228859069615965680680740671529423410923127647897452246098932507153521074318733794715598422371142507411368053089034198143892355912324690401957126137809739906467' --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":"297854108219838046223154422291890284309444641282614487152307918605413953263476726926028589324403592007129943194933438520990264688057037699345554807708623304865268462929410150364115133302629606322841591831414210465016519162649404193616648752195724824622393113228859069615965680680740671529423410923127647897452246098932507153521074318733794715598422371142507411368053089034198143892355912324690401957126137809739906467"},"decimal":false,"detail":2}}'