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 '13152897778906781620706411395905637815032994743878761633140722362438378204884959249545767082048950437034216644005024313952242870374383063575896937766280303269419893845612165312391416795500181794503594088252838169828830925099098440509672924391335212796850769009021403077144321964091413882880740325052013113023328311772800959755732165458376121471812952273409761021725487013212980319558791806003066316543033520134591377073686545511497089562226934500275963144290292533660227561887413835625495179323453010591016088849025511735941788409333345461614990523610306491927511090251620433625885056993202272046728201186407475623979554902378434986324430029740625635559489978861467132454788483880993787819931561351352022256253320901987884986998437606969942870520397724665938658760947436498016928832435372978042461634869591514283222059709013668485713000598056610396737438913184652537920066134411678902716637153585661901582160068263103196909245102704992003954829170036263513222160499404178497894053841223362542208992092940150711701918819440357667795781007896694888791775555846366793386792010508161433680081564147215615016246278278222987533907379147780188810745455064291595087123543726412640915819596443403971229568543351612807730979160147497225978715582286412982729622174337352263941194153754326777126375624897020515103673235016387596177478627291059160666592705725013851504768866439330684868193414678765832773179006431846718328603136286520362912488150196529656762411604443830226964686660302559716068965834966247390797932416336019465393696544454480553011994938910956309171666866736225748725497296161865155687266382632994595531449058300779132216252638173682485199498746137806517525189579327820661191546761883921358723983578672888160976338183699547204497734763889794496011' --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":"13152897778906781620706411395905637815032994743878761633140722362438378204884959249545767082048950437034216644005024313952242870374383063575896937766280303269419893845612165312391416795500181794503594088252838169828830925099098440509672924391335212796850769009021403077144321964091413882880740325052013113023328311772800959755732165458376121471812952273409761021725487013212980319558791806003066316543033520134591377073686545511497089562226934500275963144290292533660227561887413835625495179323453010591016088849025511735941788409333345461614990523610306491927511090251620433625885056993202272046728201186407475623979554902378434986324430029740625635559489978861467132454788483880993787819931561351352022256253320901987884986998437606969942870520397724665938658760947436498016928832435372978042461634869591514283222059709013668485713000598056610396737438913184652537920066134411678902716637153585661901582160068263103196909245102704992003954829170036263513222160499404178497894053841223362542208992092940150711701918819440357667795781007896694888791775555846366793386792010508161433680081564147215615016246278278222987533907379147780188810745455064291595087123543726412640915819596443403971229568543351612807730979160147497225978715582286412982729622174337352263941194153754326777126375624897020515103673235016387596177478627291059160666592705725013851504768866439330684868193414678765832773179006431846718328603136286520362912488150196529656762411604443830226964686660302559716068965834966247390797932416336019465393696544454480553011994938910956309171666866736225748725497296161865155687266382632994595531449058300779132216252638173682485199498746137806517525189579327820661191546761883921358723983578672888160976338183699547204497734763889794496011"},"decimal":false,"detail":2}}'