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 '464282880886910560236134112018107504885480532823757789476392017295146095090101606113151375329413009163549160635184433879390226071468166026840334920639009381423773233587361103720084427732537125975314438224522699902926693421883882437519887502594362315017116951763629505020435267739354427710949834452888198430622306770578058579091946435251713046629702110034283168974338857278563754009457896071641754007640719639198736904224935978988675180651359782703412467682851164781707730629891954826686371551005648952195403460302761097077982774496337359979521670289641506503706341515229886571202823286631523565978363935358689746932927014935371587434718625965167727091795023997375541681423828353251' --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":"464282880886910560236134112018107504885480532823757789476392017295146095090101606113151375329413009163549160635184433879390226071468166026840334920639009381423773233587361103720084427732537125975314438224522699902926693421883882437519887502594362315017116951763629505020435267739354427710949834452888198430622306770578058579091946435251713046629702110034283168974338857278563754009457896071641754007640719639198736904224935978988675180651359782703412467682851164781707730629891954826686371551005648952195403460302761097077982774496337359979521670289641506503706341515229886571202823286631523565978363935358689746932927014935371587434718625965167727091795023997375541681423828353251"},"decimal":false,"detail":2}}'