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 '931894402924331579693670557217714139850313302599747201690234403476946719413473893732977372230632079185565913755646492131682781790637232254645303290304740758231911776336674135533372445962801261958612400769998239962746856999793883592845654135361934809894209905479928548637760143796224448644535503121057012644767843936827345459135941836005946335296240011437921156958152267253289628924738923259091786869617298486426930281687601402769901043778206719889995118520183409194256979732589402166390679084886802534233067905874827062672552420373116905556264955967256187110213254091172703592204060193341958391401610233562444505714292501289214814228638294981920472680487647152352075801962480782640614399125569933397968345953669498950103973456777524972791351607631661192546290607326412412196620076687637571387541647656832113221619004220321885432641212004097309083480331777019837866292150921473878828089457323835486549990026406794572093652090216134577789625704611016051503867604947829488286250818131815943162404653817613006422802798952499097420794700974527349463411186769391031276763410178397511848988458782675115735018290691845003220845237296204335674355776061176683949605261204750736827733140301145949420384461739558806996301973685475870040561528298076354653081158906622857711157492455562092231567867914587914394265855128997237902588055697275431455730191612673806005818617379195097382594845811562799437798248570267899117766180228562220376010248884717849652959148831030119064802174549320350497893397189090238275388869878367912755939955477299151653048946257378042377444081027889182478103' --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":"931894402924331579693670557217714139850313302599747201690234403476946719413473893732977372230632079185565913755646492131682781790637232254645303290304740758231911776336674135533372445962801261958612400769998239962746856999793883592845654135361934809894209905479928548637760143796224448644535503121057012644767843936827345459135941836005946335296240011437921156958152267253289628924738923259091786869617298486426930281687601402769901043778206719889995118520183409194256979732589402166390679084886802534233067905874827062672552420373116905556264955967256187110213254091172703592204060193341958391401610233562444505714292501289214814228638294981920472680487647152352075801962480782640614399125569933397968345953669498950103973456777524972791351607631661192546290607326412412196620076687637571387541647656832113221619004220321885432641212004097309083480331777019837866292150921473878828089457323835486549990026406794572093652090216134577789625704611016051503867604947829488286250818131815943162404653817613006422802798952499097420794700974527349463411186769391031276763410178397511848988458782675115735018290691845003220845237296204335674355776061176683949605261204750736827733140301145949420384461739558806996301973685475870040561528298076354653081158906622857711157492455562092231567867914587914394265855128997237902588055697275431455730191612673806005818617379195097382594845811562799437798248570267899117766180228562220376010248884717849652959148831030119064802174549320350497893397189090238275388869878367912755939955477299151653048946257378042377444081027889182478103"},"decimal":false,"detail":2}}'