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 '1599578915282635653247977128906955188544182566802378433366250597239257699669609399917566111297340316908053999355959411524737789463202964618449563413942543407480258742646449860307650395152227093338323179168018740478794669686394808538459899484385488116012154755323224554640953325498633411662978693183390861918424189975123924388535331517274263237852152153597483759301447408401696984912291272670844680950308513953640379125291054305710037203082268642513967321148202125054716637270648801091446725447422873167853131384643544044958674484321645345448483368788154109679297657437519912486956487362336614999358306184309347554088804552412111651551030022773404010566657261418310842002932938353251933048456017585964163156613202292623315420047347828088956846380938065680012283766079998948084937609973933' --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":"1599578915282635653247977128906955188544182566802378433366250597239257699669609399917566111297340316908053999355959411524737789463202964618449563413942543407480258742646449860307650395152227093338323179168018740478794669686394808538459899484385488116012154755323224554640953325498633411662978693183390861918424189975123924388535331517274263237852152153597483759301447408401696984912291272670844680950308513953640379125291054305710037203082268642513967321148202125054716637270648801091446725447422873167853131384643544044958674484321645345448483368788154109679297657437519912486956487362336614999358306184309347554088804552412111651551030022773404010566657261418310842002932938353251933048456017585964163156613202292623315420047347828088956846380938065680012283766079998948084937609973933"},"decimal":false,"detail":2}}'