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 '501107691445909005542266573626213018872002546947393388322882847617318740861102647711274504258982365442440733170328840330784708188300725654026297102545069621181145242645814515425534641846081341324666055337350938266095875872750718878111910890472452933129473728254212409234966654904706077607734499658060536886368155944907455022092900765383686000383516548708740824207872801801315912024716438396808307402699761411158068640722925123500375878466991543410938338636975697690751142922461017743837214921860240943555826147858660891720820075963082846159018363709855673991838571353659516369254896350835896949464847688520836796755477665190232777012564207386119333101398415351911049450441140133248661183055954239545326673673975407125610999148843014315880586245406181650524157801885332817087881133028661672418791742288863181507810397692142815641735052173926446346497543156919176051559576434871336895905681254134525331070099' --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":"501107691445909005542266573626213018872002546947393388322882847617318740861102647711274504258982365442440733170328840330784708188300725654026297102545069621181145242645814515425534641846081341324666055337350938266095875872750718878111910890472452933129473728254212409234966654904706077607734499658060536886368155944907455022092900765383686000383516548708740824207872801801315912024716438396808307402699761411158068640722925123500375878466991543410938338636975697690751142922461017743837214921860240943555826147858660891720820075963082846159018363709855673991838571353659516369254896350835896949464847688520836796755477665190232777012564207386119333101398415351911049450441140133248661183055954239545326673673975407125610999148843014315880586245406181650524157801885332817087881133028661672418791742288863181507810397692142815641735052173926446346497543156919176051559576434871336895905681254134525331070099"},"decimal":false,"detail":2}}'