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 '547552935265689337305737370118878862003232240144627423779993361144440527942619507572114032137526745189959423655932999220987855904872614940898258376767003672275783602679659772077676997024493813607832565322463904150696305673725608433553817870558179006731596246833789493621939651652247299622727194758582145484494994534657167671309946575973137400788645498173819236449288007895303054191767892967635523610120785749151409187573131078118581768236224045031930592597042573704690780385675206130966507109284208484335425304326671737447740547247748505030474774607854182080438315366502090396504163590487799598253642477145118858182358625405538927038779303819502129588647092239639' --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":"547552935265689337305737370118878862003232240144627423779993361144440527942619507572114032137526745189959423655932999220987855904872614940898258376767003672275783602679659772077676997024493813607832565322463904150696305673725608433553817870558179006731596246833789493621939651652247299622727194758582145484494994534657167671309946575973137400788645498173819236449288007895303054191767892967635523610120785749151409187573131078118581768236224045031930592597042573704690780385675206130966507109284208484335425304326671737447740547247748505030474774607854182080438315366502090396504163590487799598253642477145118858182358625405538927038779303819502129588647092239639"},"decimal":false,"detail":2}}'