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 '298385304443668021548402385955712222811631399859681723938738828181187178984281047730734663293509123326597521326369603096066138858736630088642944336876757230118581094615374614020458603941359717272807483503865747786944513682096276711929243190905537397871055110183875981122328203923491239337612790685614109212677044765027831520027606545269231740169009735745348720650787224915864603412586000145676659663286055695826332064507910555550798660783258193688206911309255964487454326305330379293585992118169045680346763618562020009' --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":"298385304443668021548402385955712222811631399859681723938738828181187178984281047730734663293509123326597521326369603096066138858736630088642944336876757230118581094615374614020458603941359717272807483503865747786944513682096276711929243190905537397871055110183875981122328203923491239337612790685614109212677044765027831520027606545269231740169009735745348720650787224915864603412586000145676659663286055695826332064507910555550798660783258193688206911309255964487454326305330379293585992118169045680346763618562020009"},"decimal":false,"detail":2}}'