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 '4486987773103851365299805028705830099861269853407614589120796920429145422183999907632685556521342703868260563806545411783853999735430558577550606557679773211459829951197572383778605844148485955340503361888860828233359538165115138089864017243923442945503910961245539707355251166172749861152569968017297159055655567738936781242849350485784395534353067013322797886245013663292055591899118237586999375762382011556915268778801812635675559839196503477012066759034636313471057487558322208543949387580955899647845045575304633138786082979780769129536264591158205905243049225826965099120229025513553434516216147270776512457840019148874710351246025475876904156947476805130507252422533334407465051894536719511408279961169845071365172609313271042633735539269004603323649011521831397758552606600089638201156817032419330007376167389307147572477968173467954554022013509959788568766764307979024391632429435406492631001031436378313971136732251462288476451314476068680723293595338658704935463304645761706135833319668222831788792705718133153809966905627167880842661005593285561' --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":"4486987773103851365299805028705830099861269853407614589120796920429145422183999907632685556521342703868260563806545411783853999735430558577550606557679773211459829951197572383778605844148485955340503361888860828233359538165115138089864017243923442945503910961245539707355251166172749861152569968017297159055655567738936781242849350485784395534353067013322797886245013663292055591899118237586999375762382011556915268778801812635675559839196503477012066759034636313471057487558322208543949387580955899647845045575304633138786082979780769129536264591158205905243049225826965099120229025513553434516216147270776512457840019148874710351246025475876904156947476805130507252422533334407465051894536719511408279961169845071365172609313271042633735539269004603323649011521831397758552606600089638201156817032419330007376167389307147572477968173467954554022013509959788568766764307979024391632429435406492631001031436378313971136732251462288476451314476068680723293595338658704935463304645761706135833319668222831788792705718133153809966905627167880842661005593285561"},"decimal":false,"detail":2}}'