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 '269651626110527561220378684681044389035907916753427305259930188559642676403204680836408345246664828868726597339376916233755511726583010156358900677599808163460680614729623986136416361797660741715216355976581914314100813818341920478043027787779038701484505415878885105732297919017569166752982636637890750746304235295092836094321557610236588564081119695013617928691061872866415789765906380317758577768411' --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":"269651626110527561220378684681044389035907916753427305259930188559642676403204680836408345246664828868726597339376916233755511726583010156358900677599808163460680614729623986136416361797660741715216355976581914314100813818341920478043027787779038701484505415878885105732297919017569166752982636637890750746304235295092836094321557610236588564081119695013617928691061872866415789765906380317758577768411"},"decimal":false,"detail":2}}'