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 '5257177343499563093393898481478266632202640792200243700116894756502820752991153021619204798522620058755937622800762807469678195893837946621660260851736525030179090686751408140429698173714542557077359830116916504543251947323398196084604548719688978875437306342786532163305994102079474619396961758243329073347369388139165354597195297397562352915221118645966663121677603277873320793766490809462177876595192761666229815837507560382078760556596277157248472146784580364522590922410335766413204247829802868907695709171059691171282664386780646185015683460724979066204566407178684696153677841938496780944456187555840702454371204942662280738325203290740168981184259959671904604892914498493211074369352846740164768513928262242692460722597025803236921896420128378646415186279478161293478972321955303930538045514989547617148051736492479987' --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":"5257177343499563093393898481478266632202640792200243700116894756502820752991153021619204798522620058755937622800762807469678195893837946621660260851736525030179090686751408140429698173714542557077359830116916504543251947323398196084604548719688978875437306342786532163305994102079474619396961758243329073347369388139165354597195297397562352915221118645966663121677603277873320793766490809462177876595192761666229815837507560382078760556596277157248472146784580364522590922410335766413204247829802868907695709171059691171282664386780646185015683460724979066204566407178684696153677841938496780944456187555840702454371204942662280738325203290740168981184259959671904604892914498493211074369352846740164768513928262242692460722597025803236921896420128378646415186279478161293478972321955303930538045514989547617148051736492479987"},"decimal":false,"detail":2}}'