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 '1128978729012154735441496289817537452739347339515227166007403124629651020420223019285476882893021663517125760774058715649871864147640751349329528819976011610527433186370910510933518398861583823029939109585632222378622538734806341912019078070236565921207648050996110006197125682978629979560941442657755670796250099356612275540517814991088974828292546573122861763964402181110195481446329157429100634320895079764055059501336189' --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":"1128978729012154735441496289817537452739347339515227166007403124629651020420223019285476882893021663517125760774058715649871864147640751349329528819976011610527433186370910510933518398861583823029939109585632222378622538734806341912019078070236565921207648050996110006197125682978629979560941442657755670796250099356612275540517814991088974828292546573122861763964402181110195481446329157429100634320895079764055059501336189"},"decimal":false,"detail":2}}'