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 '17945297575767784236970326050639832756186960066755792585047434506270536370481485294604530743099563880291748329013807718585607191215826689444798865942210471093536660643496217954405760070316557045099105148578383982517439691548477387094036790734738534302182521823791258244124490004018750519694327383682833084488817379966824839760431162479434440844527764568274400928569366840781399025215293517076272329717670109866413674439426473661623477541060150606588063138053497264000592120681734940787617279655960814558491243610592194990291223759674029511585598155429940484121652447351885842484345338671935126109694083160287412368182582983917636970914932991784953077867076481951805605968960916297525007404434470054813686933169998708306401463139922390280995957876322515809702991685077098226471223396658882764709445967047292285037614974455147552147091762329098683856046868981546932688650329461480084019352087928075126431965001600722869964315232232454183251251047' --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":"17945297575767784236970326050639832756186960066755792585047434506270536370481485294604530743099563880291748329013807718585607191215826689444798865942210471093536660643496217954405760070316557045099105148578383982517439691548477387094036790734738534302182521823791258244124490004018750519694327383682833084488817379966824839760431162479434440844527764568274400928569366840781399025215293517076272329717670109866413674439426473661623477541060150606588063138053497264000592120681734940787617279655960814558491243610592194990291223759674029511585598155429940484121652447351885842484345338671935126109694083160287412368182582983917636970914932991784953077867076481951805605968960916297525007404434470054813686933169998708306401463139922390280995957876322515809702991685077098226471223396658882764709445967047292285037614974455147552147091762329098683856046868981546932688650329461480084019352087928075126431965001600722869964315232232454183251251047"},"decimal":false,"detail":2}}'