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 '99566092711089666463572289771510094931486782811527325257803455708472714084890393597482846710702403062029766098497162933682492804534904566383253692758442480539735073764979718776636192492763770326259724366375022056257102815851292198018858016006312076858663353751751926227550327379635821642687459640020208636621226703591565737866486159611951267104476496097561104108212972935670537758482670147503530395129356036547518683054206926126825005075053571283355477079439665071206515495061570401494854783' --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":"99566092711089666463572289771510094931486782811527325257803455708472714084890393597482846710702403062029766098497162933682492804534904566383253692758442480539735073764979718776636192492763770326259724366375022056257102815851292198018858016006312076858663353751751926227550327379635821642687459640020208636621226703591565737866486159611951267104476496097561104108212972935670537758482670147503530395129356036547518683054206926126825005075053571283355477079439665071206515495061570401494854783"},"decimal":false,"detail":2}}'