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 '39269511009946448008937602439813914382210305867694397573452975090886145116485921031149369534656891578050734477249428853204802301603136615949684986217452215533828979412392664441766996996507816040924132723531745053298469633407678860093587633551752102364073607889816813979554686744180085952767693103928966883102435266808381147861998900353754427280766322891710461281358448292134988113993239498144533689112598856971803728367792589086244010935631442061826367023365457444552226723731664844995417843122122952672077657038749829084375404516241785900032772255804272219075031013818155161056710614198786555057198844741657427863300374476305940182169354674106776226895099968596728652527926446047154481783535582946667572945556034568249851605166367824649839805446568736801715885510349512012667111306296349491346432009680042662996305133161875225606928266288105597264576547279002692279974373630372638097368726592074968668154005692096208044699228974349410408185989376482312773457432205461849065220481337310573522492507058440957985405820611116524695728736145430335397223167390213880949265605593329910847268629111591184604533282322432265639863278612856352813635636915346614349781601095724149382477953290425953227198105483899396293010311771064185397042236849192503070055034555393433113002208499746900725914881947531970893180703000094278612709125327739186315368030499528842132623700739638000460360549119548333477249396820683104945059720626369923276586351719931372804299583016687286682964088015471199557951842580373321047184925634761745430300934177323478806449788530540490684916611545405461625449469447360915952968878796835864741808027581881151660043539142096827328683349735303658133' --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":"39269511009946448008937602439813914382210305867694397573452975090886145116485921031149369534656891578050734477249428853204802301603136615949684986217452215533828979412392664441766996996507816040924132723531745053298469633407678860093587633551752102364073607889816813979554686744180085952767693103928966883102435266808381147861998900353754427280766322891710461281358448292134988113993239498144533689112598856971803728367792589086244010935631442061826367023365457444552226723731664844995417843122122952672077657038749829084375404516241785900032772255804272219075031013818155161056710614198786555057198844741657427863300374476305940182169354674106776226895099968596728652527926446047154481783535582946667572945556034568249851605166367824649839805446568736801715885510349512012667111306296349491346432009680042662996305133161875225606928266288105597264576547279002692279974373630372638097368726592074968668154005692096208044699228974349410408185989376482312773457432205461849065220481337310573522492507058440957985405820611116524695728736145430335397223167390213880949265605593329910847268629111591184604533282322432265639863278612856352813635636915346614349781601095724149382477953290425953227198105483899396293010311771064185397042236849192503070055034555393433113002208499746900725914881947531970893180703000094278612709125327739186315368030499528842132623700739638000460360549119548333477249396820683104945059720626369923276586351719931372804299583016687286682964088015471199557951842580373321047184925634761745430300934177323478806449788530540490684916611545405461625449469447360915952968878796835864741808027581881151660043539142096827328683349735303658133"},"decimal":false,"detail":2}}'