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 '205633130042860594723473619005574412706918870371457457905703821097513903234806949891683402201678950323490639862338101096187378012480183782664864070263164536905927297018162212858239165581398608051361090679329099756265186029816102548788316996366338943861356841192531727238488549066948913626446451055133885674816968733708125642021642031934738835586906126788694443492673120719936083286352478514535238361022987286595099340854101221820900107490986275001141425660772088689326270606810499671187193848618052553047969243924479933398680340553867375183104767141981614295532784827571658204669459847438377879799915088094301433904906837658105197931274655430499405051987497059024895417813372282829328599157834567441516098809985289721415382070878189465381270121442433175272467528278418396520441807020467130705954084929734946887901146439173824680455638216859009023' --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":"205633130042860594723473619005574412706918870371457457905703821097513903234806949891683402201678950323490639862338101096187378012480183782664864070263164536905927297018162212858239165581398608051361090679329099756265186029816102548788316996366338943861356841192531727238488549066948913626446451055133885674816968733708125642021642031934738835586906126788694443492673120719936083286352478514535238361022987286595099340854101221820900107490986275001141425660772088689326270606810499671187193848618052553047969243924479933398680340553867375183104767141981614295532784827571658204669459847438377879799915088094301433904906837658105197931274655430499405051987497059024895417813372282829328599157834567441516098809985289721415382070878189465381270121442433175272467528278418396520441807020467130705954084929734946887901146439173824680455638216859009023"},"decimal":false,"detail":2}}'