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 '411330878767115739790126542009694375283564829984722067951675797963089059506127869012461588435821627531151280313931793518929916391638183979531212953353625519988325924309371901239397838153340069420603164706705360434781577502519350723846860263891479246111070848925529774858648377076495752608200025552960972313867715161539046778142934198766776171903047520616706325720923366102544863381829697316030015152436083744869833468104270425686328811577858707631445099438262647636632049793022241708811504854058061670112410186046637863233428441506664537770589475599599238930852059218082654304667987773326785364802244744563160798901537457596908388556968034963318039952984386020585505073560982569716475573884463278832498230830327175098078339945197415022833541119013270656713028662596985074446765344523299023292397414219237742392732012011574344801364527943435672605247695849975325727486335848586086709599597857408917016977636830420787551687410407547023732987735643912187774528381' --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":"411330878767115739790126542009694375283564829984722067951675797963089059506127869012461588435821627531151280313931793518929916391638183979531212953353625519988325924309371901239397838153340069420603164706705360434781577502519350723846860263891479246111070848925529774858648377076495752608200025552960972313867715161539046778142934198766776171903047520616706325720923366102544863381829697316030015152436083744869833468104270425686328811577858707631445099438262647636632049793022241708811504854058061670112410186046637863233428441506664537770589475599599238930852059218082654304667987773326785364802244744563160798901537457596908388556968034963318039952984386020585505073560982569716475573884463278832498230830327175098078339945197415022833541119013270656713028662596985074446765344523299023292397414219237742392732012011574344801364527943435672605247695849975325727486335848586086709599597857408917016977636830420787551687410407547023732987735643912187774528381"},"decimal":false,"detail":2}}'