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 '57512053395159439823150678071686585141990146593336076344104375396773661960002630789736297948159715994011023132664891775366285546537328960517627466063835979210774030920583484916465174995037569453409929115621825059751590365053101706078876527455555099179660732867335251222247078750017172161075574571921306523754784828066109207390484204340962927012208512364108956842172274708548085358498621199238539535828609310130385135745518067624177063424724751155684865361545907736879970961057488012108587049758862718662762603765709003730134484822789319424260794886955190766631034440097694008476272957130166145812421403924003976103724723607341686146566169659980021317816948732606864615712274838059272388578688663490260609391103521987684292473969600370167522573669036325236395468483163918599380191023569384618451679569872054810793784967318820347522195455603946173832037342267900314763180896036734283114382815515891675305593902118629192259521150599452819652204523231487352582273732215250236672266323170643428274554475133850591427' --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":"57512053395159439823150678071686585141990146593336076344104375396773661960002630789736297948159715994011023132664891775366285546537328960517627466063835979210774030920583484916465174995037569453409929115621825059751590365053101706078876527455555099179660732867335251222247078750017172161075574571921306523754784828066109207390484204340962927012208512364108956842172274708548085358498621199238539535828609310130385135745518067624177063424724751155684865361545907736879970961057488012108587049758862718662762603765709003730134484822789319424260794886955190766631034440097694008476272957130166145812421403924003976103724723607341686146566169659980021317816948732606864615712274838059272388578688663490260609391103521987684292473969600370167522573669036325236395468483163918599380191023569384618451679569872054810793784967318820347522195455603946173832037342267900314763180896036734283114382815515891675305593902118629192259521150599452819652204523231487352582273732215250236672266323170643428274554475133850591427"},"decimal":false,"detail":2}}'