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 '190817017476994091573241817771128651525117457525496409028488373758951342764938828184098004806721200633303475717949775286570358288455442132975499556576969843373312129016257828502584170766524191080350136595060411282660258167303248154923393692975647201437458608089463956047926149102591766067898566929563279196964106355456637999712386558003932024441341371734558186987950354602852625877099129192993090744094421723088228256025153078678382967132605951347302468274523496550256151472556712797756511948496863333602838510405884012226063354242654158739542036558601581414673393230212189776122936998388496374995391697779433423382267040549109707107011923858008954787491906468387398575899417946176983384294709233729823615270849452700387484412266891708155850114517311026205979221668847523805399847255576535013057908001031591245639297507256605543709757010192896788680468035585653606017307659580276402547340460358096829488898692644243756172138315923931654835084576054261816593669532425772204746107188751537130836299524132010196464087806981356274649814147403149619801816517827087291923743573623783840924084076624923854342533399517901358976782521654946789614428244009275694054728815487555138023013685239838261801190295675414551169639110695925611262800778524996664506934749217376191285045309406162108843912016758780227551094848849264547542677604632341953437088154347230053007853385584971094146058754259' --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":"190817017476994091573241817771128651525117457525496409028488373758951342764938828184098004806721200633303475717949775286570358288455442132975499556576969843373312129016257828502584170766524191080350136595060411282660258167303248154923393692975647201437458608089463956047926149102591766067898566929563279196964106355456637999712386558003932024441341371734558186987950354602852625877099129192993090744094421723088228256025153078678382967132605951347302468274523496550256151472556712797756511948496863333602838510405884012226063354242654158739542036558601581414673393230212189776122936998388496374995391697779433423382267040549109707107011923858008954787491906468387398575899417946176983384294709233729823615270849452700387484412266891708155850114517311026205979221668847523805399847255576535013057908001031591245639297507256605543709757010192896788680468035585653606017307659580276402547340460358096829488898692644243756172138315923931654835084576054261816593669532425772204746107188751537130836299524132010196464087806981356274649814147403149619801816517827087291923743573623783840924084076624923854342533399517901358976782521654946789614428244009275694054728815487555138023013685239838261801190295675414551169639110695925611262800778524996664506934749217376191285045309406162108843912016758780227551094848849264547542677604632341953437088154347230053007853385584971094146058754259"},"decimal":false,"detail":2}}'