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 '338214335670682832756744184778240589407023218211945696856396983701179786139667376539254913127741746504101955910170392034328951885716750387107117904127618110484419577947384734374269732902598664985882161084016870725104961196560470791524406516601268411700347593895418205784479694298140336745512503048203456306789225474671165129374729864303517596535632225432600756074235702587375435887710195555123356182156420411728859238296181630111264240723901201783438192652280647693898210585677232129746201415771046722116823235904694728286720010192478431206352550512159294201756794149927410766081596386342076444439857957484052329274914972155103412713782692897178036119349521761477305809796590153739140851229000095591819748033096490633758324136236801370951049347212556917818675558002550585280168169479436357397466045967508793742160121216500258832316082545426638629934323801194182558130425828946421500481529218356935448772391875539253453709314947255566875839867036631286900117222521142455152649227078214028390484151840193155841147877066768614888453502092119065097579582696294664371772805507745266781411359724612736660929432013769363166953528399311531841652323580034423407917383820998278829604130808950086058519793459552495697074010327022375215146299483648881239242685025817555938037865748709122203098106712564543889845094664371772805507745266781411359724612736660929432013769363166953528399311531841652323580034423407917383820998278829604130808950086058519793459552495697074010327022375215146299483648881239242685025817555938037865748709122203098106712564543889845094664371772805507745266781411359724612736660929432013769363166953528399311531841652323580034423407917381569' --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":"338214335670682832756744184778240589407023218211945696856396983701179786139667376539254913127741746504101955910170392034328951885716750387107117904127618110484419577947384734374269732902598664985882161084016870725104961196560470791524406516601268411700347593895418205784479694298140336745512503048203456306789225474671165129374729864303517596535632225432600756074235702587375435887710195555123356182156420411728859238296181630111264240723901201783438192652280647693898210585677232129746201415771046722116823235904694728286720010192478431206352550512159294201756794149927410766081596386342076444439857957484052329274914972155103412713782692897178036119349521761477305809796590153739140851229000095591819748033096490633758324136236801370951049347212556917818675558002550585280168169479436357397466045967508793742160121216500258832316082545426638629934323801194182558130425828946421500481529218356935448772391875539253453709314947255566875839867036631286900117222521142455152649227078214028390484151840193155841147877066768614888453502092119065097579582696294664371772805507745266781411359724612736660929432013769363166953528399311531841652323580034423407917383820998278829604130808950086058519793459552495697074010327022375215146299483648881239242685025817555938037865748709122203098106712564543889845094664371772805507745266781411359724612736660929432013769363166953528399311531841652323580034423407917383820998278829604130808950086058519793459552495697074010327022375215146299483648881239242685025817555938037865748709122203098106712564543889845094664371772805507745266781411359724612736660929432013769363166953528399311531841652323580034423407917381569"},"decimal":false,"detail":2}}'