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 '135405207901554845870243390381259006607878548849949560501225499530829284302464421206587890980959538245596348878502153411318074130486206724633109384611334325175149713429286666689258345507397488074235464301768839776068154828136998559650762170416950246831905422663864048579647755118283447635909747947364889717440579627285805394740048115378284849764664400798246503959489212482475344285007255861973250402605749991066563795079290633249447279549565075180252423622423213492808355862028005141974835726429819501557178383444254589754148224717243830886577808156687546177113433058676772653148238664970203653431516212351131831031020517120711' --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":"135405207901554845870243390381259006607878548849949560501225499530829284302464421206587890980959538245596348878502153411318074130486206724633109384611334325175149713429286666689258345507397488074235464301768839776068154828136998559650762170416950246831905422663864048579647755118283447635909747947364889717440579627285805394740048115378284849764664400798246503959489212482475344285007255861973250402605749991066563795079290633249447279549565075180252423622423213492808355862028005141974835726429819501557178383444254589754148224717243830886577808156687546177113433058676772653148238664970203653431516212351131831031020517120711"},"decimal":false,"detail":2}}'