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 '125796592399996533366706700537282072783178869822215839436795496121661062144669286041693556372799804366690492546599958436689574334217836990484830595461914870157634702703995517616862960706818114558647254418390032650329636555205152590777643464457139576133916857708734939026019764776264414567356339284453' --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":"125796592399996533366706700537282072783178869822215839436795496121661062144669286041693556372799804366690492546599958436689574334217836990484830595461914870157634702703995517616862960706818114558647254418390032650329636555205152590777643464457139576133916857708734939026019764776264414567356339284453"},"decimal":false,"detail":2}}'