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 '65736014739135633832640400213803024088949017609489257368744946323213062752234657017441600789247353135343329364515616322778422927855559115008928824828872107219754733482564876335101098317775706349986856695740178184507445142067908172717138788796211299994258568306094336355748714165658078646456067051760460945999280407495577879262460491020691338921646825225274927982420744467096627376178140853636881202043366803489723201138778022629484288481210520127507126615318429477764202135363335710506573129090696035814677459285292083353036720776524153407072481327798278758157112770756121505586560047806052822349073816023565506813905344504575577500346161924829633657083386663132433576437596223133210023884010312164474743285591554313247374542914546869658645453036716212364779347463810991139836545090080025797952742430719096146478829796517903911518903442033777107385699226634369804495138006819896483727777722963328411904976565100987190817043694523959342868930439914557764613684883800092153662357483048925103611864667168385868188853748844774276582740698714968123982713922999225421963796122627450855969746333104440281487079161360209739876186584302573193376291823333467079701667176388921392012736191085627545546680375141071831238855002844760679016716551866727518379526398300580299077184387461599379222812665458955784245681261929763181803880328684825472482395294652132535669677376382474913760719444921413884513693538866640731362088276122780343116005154456323' --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":"65736014739135633832640400213803024088949017609489257368744946323213062752234657017441600789247353135343329364515616322778422927855559115008928824828872107219754733482564876335101098317775706349986856695740178184507445142067908172717138788796211299994258568306094336355748714165658078646456067051760460945999280407495577879262460491020691338921646825225274927982420744467096627376178140853636881202043366803489723201138778022629484288481210520127507126615318429477764202135363335710506573129090696035814677459285292083353036720776524153407072481327798278758157112770756121505586560047806052822349073816023565506813905344504575577500346161924829633657083386663132433576437596223133210023884010312164474743285591554313247374542914546869658645453036716212364779347463810991139836545090080025797952742430719096146478829796517903911518903442033777107385699226634369804495138006819896483727777722963328411904976565100987190817043694523959342868930439914557764613684883800092153662357483048925103611864667168385868188853748844774276582740698714968123982713922999225421963796122627450855969746333104440281487079161360209739876186584302573193376291823333467079701667176388921392012736191085627545546680375141071831238855002844760679016716551866727518379526398300580299077184387461599379222812665458955784245681261929763181803880328684825472482395294652132535669677376382474913760719444921413884513693538866640731362088276122780343116005154456323"},"decimal":false,"detail":2}}'