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 '824873975219328337108633431874247897011968432086958815740299058097320253362806563589445666922124864157814353771883611005302307603794032298606626170577657162269679167285003101633292865640298669620365536863356112128786756740603882399388053900286460484891923892843139269123138147555660923057428401832154184675457527124550597383324398389766279260037270505459221208694551919858657376742604370178601155539550929898352334382060415692009228781082763277014706075986952599180907354945120258526169448785443436509391681925078419507126037510069449021944415335214763181697020380177252774320226499012040258277826526953008450376806836844434198593449939780751739537625151898777358216982654617206899830951' --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":"824873975219328337108633431874247897011968432086958815740299058097320253362806563589445666922124864157814353771883611005302307603794032298606626170577657162269679167285003101633292865640298669620365536863356112128786756740603882399388053900286460484891923892843139269123138147555660923057428401832154184675457527124550597383324398389766279260037270505459221208694551919858657376742604370178601155539550929898352334382060415692009228781082763277014706075986952599180907354945120258526169448785443436509391681925078419507126037510069449021944415335214763181697020380177252774320226499012040258277826526953008450376806836844434198593449939780751739537625151898777358216982654617206899830951"},"decimal":false,"detail":2}}'