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 '3085040509458170369137497370014625412150528046282951910587965684286714413754096139071042759865005059087306655760261928054676848710597039725283545177675352634988623337055993047209919515511398037237786098517312736526384912765454183101507221656344304649462973641811989343296586592618058318771513460818671554926512809194808111671607' --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":"3085040509458170369137497370014625412150528046282951910587965684286714413754096139071042759865005059087306655760261928054676848710597039725283545177675352634988623337055993047209919515511398037237786098517312736526384912765454183101507221656344304649462973641811989343296586592618058318771513460818671554926512809194808111671607"},"decimal":false,"detail":2}}'