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 '39146690152480961665122713715493158361077109852308784194065631638183857950679255943243708715484189704476531614175924095697205000424915100429929598029017245185694293811411987469683966052442286630234826434094268166198683249654707669323731535322137683017890866987556002085078713396837166804487859958858226256546949605159028123077480803396738689305799986774580648900212760047573876545589638944194969543648591013814164928849867040659098645151975585784467975021701149784953479164473169639736002768873601826118258849712659848355466962276923279118398582868510940367096940001969823095876506316943357847170599106783724265272756654085705131625546983063129009508844650739873832420153319776524582786537289013752691004774340737677292542027824214421762740831809199995790576486162475670699388402538109687184130819487589271874794830400388755609587739519434372345057032536988985167239728454520857967870663698185807946899334900193144537230049301838677281926629393204475169979648100306885565644077671290382917107640134776171301174295180735283670734471549542647088003108368025013826251654937072314263371871519454420619315430520662076461653247713814254371670807055985716233024442417055681390519858599750009358439081724546044436905979917997594436779347106018058076066961755783403634739384219846288044513913334556403115651969548186231657986786950656348731018559886249759936241170649907064458290141133504741455619364804192889116792455597065010403670344531' --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":"39146690152480961665122713715493158361077109852308784194065631638183857950679255943243708715484189704476531614175924095697205000424915100429929598029017245185694293811411987469683966052442286630234826434094268166198683249654707669323731535322137683017890866987556002085078713396837166804487859958858226256546949605159028123077480803396738689305799986774580648900212760047573876545589638944194969543648591013814164928849867040659098645151975585784467975021701149784953479164473169639736002768873601826118258849712659848355466962276923279118398582868510940367096940001969823095876506316943357847170599106783724265272756654085705131625546983063129009508844650739873832420153319776524582786537289013752691004774340737677292542027824214421762740831809199995790576486162475670699388402538109687184130819487589271874794830400388755609587739519434372345057032536988985167239728454520857967870663698185807946899334900193144537230049301838677281926629393204475169979648100306885565644077671290382917107640134776171301174295180735283670734471549542647088003108368025013826251654937072314263371871519454420619315430520662076461653247713814254371670807055985716233024442417055681390519858599750009358439081724546044436905979917997594436779347106018058076066961755783403634739384219846288044513913334556403115651969548186231657986786950656348731018559886249759936241170649907064458290141133504741455619364804192889116792455597065010403670344531"},"decimal":false,"detail":2}}'