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 '2338394994232587992227500776988684378849250998989632922598708628524950968795061115741617260143210580640983458751292985846571513255153852723327095821574886553947277810943298781128106254455178428476767542378021542546890905522525654748475757519858354324634495000448892057601252000285369930311663600259944989134892016039223842200641429086722143172744352403015714463760087440973764001689111298861444582928498982457959891230501031185243385835541732916029541205939229443362255256711477287651817826721267625048743854499572349858060826080091444718739736558157567202391076899989281260689892658188281332551615754769604541521148526606829451071054879052725514601870350370222589635478596209779857107654576464760422016830212597414705058870074803905456330944169913256546935021257298898486000547625849456054155250373359649087417570509053405574384380580459665198480000885863554541494385304239830512890954954947310292284035627402030728878283621184628706731755682073518409010153076743455247812452853783197301216774357448204472272351337937291071851458762543518967439631648203234512238919963359343463877747405354436054480464598993860559421673225193966672556180659592331420293753026631610011730360868170954528578884036913024882156116075709526682517600055606201897605839219370811786793682903586920708753783726941018198307565976336587841388601111483029598821737564693510799028615887535784731250919488784980430811617364137235191561990762164738483437731261217205217240784494850357564080016342977845946325398710072756102087940052265876959858015870044837048762413244654388705325259319980205035577240088887755633567953812959117351421037465515033404615866002965372741535250128386610180297660640828082485001013995639221367601616034000373764443586874756762683733564897491573147930628457029739560741331353832637881237540557422194732957809994733724128539686795207' --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":"2338394994232587992227500776988684378849250998989632922598708628524950968795061115741617260143210580640983458751292985846571513255153852723327095821574886553947277810943298781128106254455178428476767542378021542546890905522525654748475757519858354324634495000448892057601252000285369930311663600259944989134892016039223842200641429086722143172744352403015714463760087440973764001689111298861444582928498982457959891230501031185243385835541732916029541205939229443362255256711477287651817826721267625048743854499572349858060826080091444718739736558157567202391076899989281260689892658188281332551615754769604541521148526606829451071054879052725514601870350370222589635478596209779857107654576464760422016830212597414705058870074803905456330944169913256546935021257298898486000547625849456054155250373359649087417570509053405574384380580459665198480000885863554541494385304239830512890954954947310292284035627402030728878283621184628706731755682073518409010153076743455247812452853783197301216774357448204472272351337937291071851458762543518967439631648203234512238919963359343463877747405354436054480464598993860559421673225193966672556180659592331420293753026631610011730360868170954528578884036913024882156116075709526682517600055606201897605839219370811786793682903586920708753783726941018198307565976336587841388601111483029598821737564693510799028615887535784731250919488784980430811617364137235191561990762164738483437731261217205217240784494850357564080016342977845946325398710072756102087940052265876959858015870044837048762413244654388705325259319980205035577240088887755633567953812959117351421037465515033404615866002965372741535250128386610180297660640828082485001013995639221367601616034000373764443586874756762683733564897491573147930628457029739560741331353832637881237540557422194732957809994733724128539686795207"},"decimal":false,"detail":2}}'