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 '946642644900959447688231723375862313863658110283865640091780516670443181029895568608667322079074357448715523393015104275860068776228957403913687034662533002693368717060609057733313781465985306205173742590156506084044420957328383462775726742704227657013051717266091829292710238648720146717862472861215792381767044280815674457035563923155559252439015905943411471415346955746476060594327971188862046040467191235024005310296545383981640943425595589133226981744959403061922635502398303771845629030032910063119566032750325827770496406005877572791' --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":"946642644900959447688231723375862313863658110283865640091780516670443181029895568608667322079074357448715523393015104275860068776228957403913687034662533002693368717060609057733313781465985306205173742590156506084044420957328383462775726742704227657013051717266091829292710238648720146717862472861215792381767044280815674457035563923155559252439015905943411471415346955746476060594327971188862046040467191235024005310296545383981640943425595589133226981744959403061922635502398303771845629030032910063119566032750325827770496406005877572791"},"decimal":false,"detail":2}}'