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 '19235196179048212010559003688053292939744038148683678475602572844169924400273122325481794220861312893702799300536223950612911172884795079668300302093573468922439473919695666542837521573072060790680637765231792821312138296584404030212207856351594543028831457011831087866707623229982123900791269142909661649773617495449231972020068460473084703142811788483712430465528319474403994541760292558816685742497146157881147695534062726888946980711648918812663978563750073723368346562383539286322309657069414748311932525154826117766866765732968235041635606163927168168694188861182821713262518052622249999916494724310083046410417395644878625983327013618749010166139185691095443158833490425449519306411132152183930535883722918853741751238834668008500847782971140317180709947453214455663302227710882039914805640109734139245493618582028450884933630304444896184511328182873347762525327597262271901088843204936437952517055547911997769930482989471008370580932292761239946958945560785081837298524434261676229643312962531125965532201337585266407725514550352643199335351' --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":"19235196179048212010559003688053292939744038148683678475602572844169924400273122325481794220861312893702799300536223950612911172884795079668300302093573468922439473919695666542837521573072060790680637765231792821312138296584404030212207856351594543028831457011831087866707623229982123900791269142909661649773617495449231972020068460473084703142811788483712430465528319474403994541760292558816685742497146157881147695534062726888946980711648918812663978563750073723368346562383539286322309657069414748311932525154826117766866765732968235041635606163927168168694188861182821713262518052622249999916494724310083046410417395644878625983327013618749010166139185691095443158833490425449519306411132152183930535883722918853741751238834668008500847782971140317180709947453214455663302227710882039914805640109734139245493618582028450884933630304444896184511328182873347762525327597262271901088843204936437952517055547911997769930482989471008370580932292761239946958945560785081837298524434261676229643312962531125965532201337585266407725514550352643199335351"},"decimal":false,"detail":2}}'