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 '412843670944599456019709679170322497091102042394178940795570639775754600109195555515053255066795975186254866678808133924367914640087074761753997535995439333766927858678682362846815772075135238940109533567704915441262808930631163890062455175998784459491724084485183387239856750884190685998889042729237523394942275713531311548858377239471591159319810034970653344790121150322594018896900723715956449950605689067734090094909204507273346032801391349889341361174856647757794329057329931060694925240046028996622876734082922858872313945834938890143919431458574857485137607842497285949281579121529596652787117920864431718110197947719444048035567183390217278598509409908486888073326931536694567387345672574250019093633170653109618030353078121067710622079028916555787035497392825861443698197120774651025119587931477481576534140995184493264798838365925667480504505692185598614260481737759717122815181726215020080900537087040600233131697999473146705120533077897625883060765245174286232696417528312182863798817682707263737' --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":"412843670944599456019709679170322497091102042394178940795570639775754600109195555515053255066795975186254866678808133924367914640087074761753997535995439333766927858678682362846815772075135238940109533567704915441262808930631163890062455175998784459491724084485183387239856750884190685998889042729237523394942275713531311548858377239471591159319810034970653344790121150322594018896900723715956449950605689067734090094909204507273346032801391349889341361174856647757794329057329931060694925240046028996622876734082922858872313945834938890143919431458574857485137607842497285949281579121529596652787117920864431718110197947719444048035567183390217278598509409908486888073326931536694567387345672574250019093633170653109618030353078121067710622079028916555787035497392825861443698197120774651025119587931477481576534140995184493264798838365925667480504505692185598614260481737759717122815181726215020080900537087040600233131697999473146705120533077897625883060765245174286232696417528312182863798817682707263737"},"decimal":false,"detail":2}}'