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 '26425152363446683345603295529234456122421812077452649190528953194636748344970490783691191723962484487745609755017151307926337005386768354075937403644209178952368218563436814064988983597012364687029315405225250212479144953669032420203955617802820652053718304206615149039573266627044364214241652742714689896871477191865601966357743929055414113025911475661310096009158983867001794066504446653413322199908669974948775927379034995636792222221175712922130261313748331847940580663960081590354068576388145904704796835367024941471359345819724874012516967237037595751430061707422469244957930416569167713827247078325779169497208041675210105994353406981550683189201997980205853582155291705989909005550125186514071559421065618254827' --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":"26425152363446683345603295529234456122421812077452649190528953194636748344970490783691191723962484487745609755017151307926337005386768354075937403644209178952368218563436814064988983597012364687029315405225250212479144953669032420203955617802820652053718304206615149039573266627044364214241652742714689896871477191865601966357743929055414113025911475661310096009158983867001794066504446653413322199908669974948775927379034995636792222221175712922130261313748331847940580663960081590354068576388145904704796835367024941471359345819724874012516967237037595751430061707422469244957930416569167713827247078325779169497208041675210105994353406981550683189201997980205853582155291705989909005550125186514071559421065618254827"},"decimal":false,"detail":2}}'