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 '608382795440704803494758442625712289070640320464437006995396522022502954225003864085297296620022004711374732629025522344443579930382014192428331960635850050038459187497516103888428713588785241386713126155697020607669180066048345819692919060132341386171571464811403067485347623543415023545397657368204151876473438627401008841828765565477120185119932678689694907264251468558076407960499515858501671258190285908211344101010600403089857629505129407454521818833048026325003432606991599101274976558679782989788211404537629347782839750401720427029869005231198517836747779749593614624906882539982611651624210538436790158323026305143601393608252150081284631459415736114563818203705395780742070209440913832260292305971501076039016364669190166506160198372536235322366548430340817351794532688078966179383240261113319730052204114049466132742864551068150335324494109803473623115294004820362501534561917154247228601071471993042815907628888938974231971' --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":"608382795440704803494758442625712289070640320464437006995396522022502954225003864085297296620022004711374732629025522344443579930382014192428331960635850050038459187497516103888428713588785241386713126155697020607669180066048345819692919060132341386171571464811403067485347623543415023545397657368204151876473438627401008841828765565477120185119932678689694907264251468558076407960499515858501671258190285908211344101010600403089857629505129407454521818833048026325003432606991599101274976558679782989788211404537629347782839750401720427029869005231198517836747779749593614624906882539982611651624210538436790158323026305143601393608252150081284631459415736114563818203705395780742070209440913832260292305971501076039016364669190166506160198372536235322366548430340817351794532688078966179383240261113319730052204114049466132742864551068150335324494109803473623115294004820362501534561917154247228601071471993042815907628888938974231971"},"decimal":false,"detail":2}}'