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 '501064148620865425134624338807966867382252292808365654612295294675598877035371626882898499982985855072876109173319669729419172712885893815405095590090469731290356398534883819554267643029358733508646147418493001149535100685856404438397267876745226655922625772218757268315110531047860307175772922028253065825885544285527642414955641088970344313716951445517042313363527428553866985063932844924214164533131152237620171935170863195417336918370484086886622015693893986187851029548904532093045989361543246056235291427408921404438201519223393316680479608701397916909989089019873363840345352327501571798343049816013619689248792235726092294122877945098648805038899932683850297224279913357532640023514655313342484049435407127847836279394013234853597593877504029123055892903709632031445545914090925699187751979204002455915998451570245697519779562899325890097445195811329921976166022319289679673209211671340419970914305532667952306117506509859833446708403704931701432429' --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":"501064148620865425134624338807966867382252292808365654612295294675598877035371626882898499982985855072876109173319669729419172712885893815405095590090469731290356398534883819554267643029358733508646147418493001149535100685856404438397267876745226655922625772218757268315110531047860307175772922028253065825885544285527642414955641088970344313716951445517042313363527428553866985063932844924214164533131152237620171935170863195417336918370484086886622015693893986187851029548904532093045989361543246056235291427408921404438201519223393316680479608701397916909989089019873363840345352327501571798343049816013619689248792235726092294122877945098648805038899932683850297224279913357532640023514655313342484049435407127847836279394013234853597593877504029123055892903709632031445545914090925699187751979204002455915998451570245697519779562899325890097445195811329921976166022319289679673209211671340419970914305532667952306117506509859833446708403704931701432429"},"decimal":false,"detail":2}}'