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 '2752074350028818794622615831558761256309039030631773496538997918814335979670660056759068825018323914843812319484740061600266895871856697750987872942884566916508904554595810241526348956718841741085268408699203651450850227166214075590683474024593731879071858024548660766110971977059094410069338727066894604943417704695155181546605205025563558253384381777150810579251213059268933500323320612330742264508497299055930910234624379288777337700640812848829040087770477824582597311646487556342972378955140919754925148712123536320367791905733237826822837194497685646878762083809593070296620821116903413735357056153787590777757731928363824721216555763589626437109056596871063758318177389160791427201269056341394868849291665572247242027283041710561619651013902421241215312969009349851107014262648278716346051202981121254794828037217904893605907844739549595191155623569436568383340992894660835085433558386384337691300617453331083058356969816053711310067955092384796076019685820362723180053375763253504608324491715983954506370392750854715696795871389807828534096738718097326979884529844457407838652205461074849879152324098489508677930497' --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":"2752074350028818794622615831558761256309039030631773496538997918814335979670660056759068825018323914843812319484740061600266895871856697750987872942884566916508904554595810241526348956718841741085268408699203651450850227166214075590683474024593731879071858024548660766110971977059094410069338727066894604943417704695155181546605205025563558253384381777150810579251213059268933500323320612330742264508497299055930910234624379288777337700640812848829040087770477824582597311646487556342972378955140919754925148712123536320367791905733237826822837194497685646878762083809593070296620821116903413735357056153787590777757731928363824721216555763589626437109056596871063758318177389160791427201269056341394868849291665572247242027283041710561619651013902421241215312969009349851107014262648278716346051202981121254794828037217904893605907844739549595191155623569436568383340992894660835085433558386384337691300617453331083058356969816053711310067955092384796076019685820362723180053375763253504608324491715983954506370392750854715696795871389807828534096738718097326979884529844457407838652205461074849879152324098489508677930497"},"decimal":false,"detail":2}}'