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 '230989727496252892381294004751083725249429060516488438914867996455163121931657342815247005934457018353384151305438743508418359931432054113023256461925238041532501860406368515188699341277799217769208328569563062805959516633457004653178829313651626638394539289385925319177899545897699940364287341276474864202586500886716457054311581955606535918380894934665396076124761535561319721989657241998767741341165850843606370563803380500590515347062041258318820835795889756712938649040901446393487326818545672955467391765885790067780852141315916920241844684180383880191179471491110581281507913191241130714601509134312732368416492709064315711147890564477957784531584031164384945920602364971360737266127557587175568625953212515513052226569899065170983371960512077155277730091388616352577176189086125347186381072194876634730938818682323611682310259775740978380586353623065205959342864847595591757935466553394325352925258262695827' --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":"230989727496252892381294004751083725249429060516488438914867996455163121931657342815247005934457018353384151305438743508418359931432054113023256461925238041532501860406368515188699341277799217769208328569563062805959516633457004653178829313651626638394539289385925319177899545897699940364287341276474864202586500886716457054311581955606535918380894934665396076124761535561319721989657241998767741341165850843606370563803380500590515347062041258318820835795889756712938649040901446393487326818545672955467391765885790067780852141315916920241844684180383880191179471491110581281507913191241130714601509134312732368416492709064315711147890564477957784531584031164384945920602364971360737266127557587175568625953212515513052226569899065170983371960512077155277730091388616352577176189086125347186381072194876634730938818682323611682310259775740978380586353623065205959342864847595591757935466553394325352925258262695827"},"decimal":false,"detail":2}}'