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 '168039379660413257304515284707086197355747684104172598791176156330521824685989722518389924048738808381208166144059168764391397077081737636290508857759006264118792059191781650962091902730803959311484927335757190605511836463173098860730710123948267822419768263072022945489129460873084873683596202539966489851642667948888445520328934542721082923058574448366754409653646205414665605103296534921045863742637061854778817904198530525430249053360741825018048934365159794387671167413811468368083572946990996887238129957135051916251044477828525975348172242400311637386587104201530665500596261143531352045415912771610607863839635376513655248173645643147297701521424319820128968008417114493194806452536088129354209541420598174557266230889211363644984285871283935383308850448633595123319469548235020678102505770999025443746936413610067049933573525966740594581057057843184463622517670469451460991887261592054845704405062818473310290318718051555507966899025255518349128770772596301731344897315410751263160628814153973642410569592848775338026175153995709286050383942403082125152583082889699001531561482311546461022263935939927750902023957687138846621103698574571654178342609463326986072549110412576555913363151752266843943263011935914173314944209026592978165167610311582042250986526491502763513131406343764751883606848788129614763683356160652059951492422150629415147615612006216814081394340263058433167692923816659549973920112742698628317039629655433277939' --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":"168039379660413257304515284707086197355747684104172598791176156330521824685989722518389924048738808381208166144059168764391397077081737636290508857759006264118792059191781650962091902730803959311484927335757190605511836463173098860730710123948267822419768263072022945489129460873084873683596202539966489851642667948888445520328934542721082923058574448366754409653646205414665605103296534921045863742637061854778817904198530525430249053360741825018048934365159794387671167413811468368083572946990996887238129957135051916251044477828525975348172242400311637386587104201530665500596261143531352045415912771610607863839635376513655248173645643147297701521424319820128968008417114493194806452536088129354209541420598174557266230889211363644984285871283935383308850448633595123319469548235020678102505770999025443746936413610067049933573525966740594581057057843184463622517670469451460991887261592054845704405062818473310290318718051555507966899025255518349128770772596301731344897315410751263160628814153973642410569592848775338026175153995709286050383942403082125152583082889699001531561482311546461022263935939927750902023957687138846621103698574571654178342609463326986072549110412576555913363151752266843943263011935914173314944209026592978165167610311582042250986526491502763513131406343764751883606848788129614763683356160652059951492422150629415147615612006216814081394340263058433167692923816659549973920112742698628317039629655433277939"},"decimal":false,"detail":2}}'