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 '63160685447607136847101213402859457329174405385303722959576108248980974108019620816362051750196396533611254545672331612180654595578360698064005128359860811775474522832812206264135982683902499215388705404722511333072287977237603500851549842525130779967151974456518936568228751236427967157812709512904142169395678583637666741466006592022736834062836485318636533928016840203548832271155952116307041553127327486411690574305875482897651550160629969819986070227057075072990282464180566956210447143917150356306912661834312305636417407565609548160879680861761302571043244278859079720318741290461134019633970226720655318204796865944122081352615231254527280063489979270633811718632942871893172990568088478488716708825525203016996070234804691471888114605172860599159157691410885154999489233922046423271013004702720674762491383033087177094678248364911553906030158667879256471810974777097718529196616261376164451415612299205476028706835779233512768899689855269933730556213040079431026374906697808561682852264235383' --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":"63160685447607136847101213402859457329174405385303722959576108248980974108019620816362051750196396533611254545672331612180654595578360698064005128359860811775474522832812206264135982683902499215388705404722511333072287977237603500851549842525130779967151974456518936568228751236427967157812709512904142169395678583637666741466006592022736834062836485318636533928016840203548832271155952116307041553127327486411690574305875482897651550160629969819986070227057075072990282464180566956210447143917150356306912661834312305636417407565609548160879680861761302571043244278859079720318741290461134019633970226720655318204796865944122081352615231254527280063489979270633811718632942871893172990568088478488716708825525203016996070234804691471888114605172860599159157691410885154999489233922046423271013004702720674762491383033087177094678248364911553906030158667879256471810974777097718529196616261376164451415612299205476028706835779233512768899689855269933730556213040079431026374906697808561682852264235383"},"decimal":false,"detail":2}}'