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 '7919457414989886429504930911984361448782438195859191027995358539687179841719993574588228219214999319582265826557210533655427782979365021016167855374615523335355099862325899054193872465803140141712107377242735731882863239493821301906885083524267710070553599704464904303835932946284116403494785729736761233134946890496745049664709867674299087914039658669320444431738470487174683134902310280710657391962264187550164542213929529306731412549878702525406065287785776221840661615517866629715163488624352299491325503191891579633178530939400704465250361010635591775117863784563270128698427180065679441011223215328836314895212921760742187274255082575218723274298992402568805154036912300352128869909176499181185951294658581093650255743646382826287879228116296055849527203489490927288781456216303605262228507326810174851580084578564601291234387487852378156482739997725426233563788464487204486063164794856470759456520679279353639842917521136391219295917511729208711472238896474432439141550134844445444037204535802922009949560710442722840508858805431788809295042312275079102246073504491789630979871980939131400090439786363272884021972724775583568741731739819950820249135533518955186027195090875434526289634003628002753295678308114204473008003926315044458202450458708834861187074682928157123327407272634526545127689' --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":"7919457414989886429504930911984361448782438195859191027995358539687179841719993574588228219214999319582265826557210533655427782979365021016167855374615523335355099862325899054193872465803140141712107377242735731882863239493821301906885083524267710070553599704464904303835932946284116403494785729736761233134946890496745049664709867674299087914039658669320444431738470487174683134902310280710657391962264187550164542213929529306731412549878702525406065287785776221840661615517866629715163488624352299491325503191891579633178530939400704465250361010635591775117863784563270128698427180065679441011223215328836314895212921760742187274255082575218723274298992402568805154036912300352128869909176499181185951294658581093650255743646382826287879228116296055849527203489490927288781456216303605262228507326810174851580084578564601291234387487852378156482739997725426233563788464487204486063164794856470759456520679279353639842917521136391219295917511729208711472238896474432439141550134844445444037204535802922009949560710442722840508858805431788809295042312275079102246073504491789630979871980939131400090439786363272884021972724775583568741731739819950820249135533518955186027195090875434526289634003628002753295678308114204473008003926315044458202450458708834861187074682928157123327407272634526545127689"},"decimal":false,"detail":2}}'