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 '98226791311545432297258180902947728487067952583744858217129530110623213781886518682854003909951413128512750642488683038770363187053696576364404876878478528391098526697372810967428970210071570024249808971530228389444110523361306208185229849070290402988409423667163542622065701856296111597422885109886490346880134019854340057097799573937764698458242890815181303628329360571651078671119608421148217855558103244898202936824859059356590303006264176180300733317190658691467360620361259878659666899445584548487507469244564095210818849564431946474532633412331351118301213243678098830483372092392850826846030881383015586398412616253971318571119561707224205510957654284291367808069721151449245288208833391145783051551488278903494630520874179437234319037471319769961755649924196319908870047463516392068192624445751760579277678907339872569602451829806351651003660546891133541058021102852624275328798839540884041175885500792038187592726467895981909074237488088500886106513632063228366383262403775173616551970365591798400918281384548775238567648665162118471555922027699185214770133448389227759716689191969017901516438368839376556204632777441192342879367887671313468295450197131967744330605497191781484372704675822086670619865516840564627003173206846796316341180748004873' --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":"98226791311545432297258180902947728487067952583744858217129530110623213781886518682854003909951413128512750642488683038770363187053696576364404876878478528391098526697372810967428970210071570024249808971530228389444110523361306208185229849070290402988409423667163542622065701856296111597422885109886490346880134019854340057097799573937764698458242890815181303628329360571651078671119608421148217855558103244898202936824859059356590303006264176180300733317190658691467360620361259878659666899445584548487507469244564095210818849564431946474532633412331351118301213243678098830483372092392850826846030881383015586398412616253971318571119561707224205510957654284291367808069721151449245288208833391145783051551488278903494630520874179437234319037471319769961755649924196319908870047463516392068192624445751760579277678907339872569602451829806351651003660546891133541058021102852624275328798839540884041175885500792038187592726467895981909074237488088500886106513632063228366383262403775173616551970365591798400918281384548775238567648665162118471555922027699185214770133448389227759716689191969017901516438368839376556204632777441192342879367887671313468295450197131967744330605497191781484372704675822086670619865516840564627003173206846796316341180748004873"},"decimal":false,"detail":2}}'