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 '234258043866860242924925583805262430356297212847783042919539177678292014080380945814521272739984114431650130556240359934752690230829147630120886040876536207422684035679741561124569912243446296391499347092709304999731105601959150369324193549103922497337189343963408133525848319098462094428259117291303186438492121604962804919539743309962610248420824396976146469194983114568021134213161379327054136055883045547111173306543569673803285049760745745741288145411291079598034291716055251276188401756688800886290434009327223536711364573932852742029546083317945397591933752938613386612731409710987814516346686068388220285988255540628211078185505166158687035630590274178736476642254500245312138038403499373270207237414875983720842865551155419402662195048234494969777663721921406254265475083106074609161184029914912192996991575475986610446587084562167007115548680010699770131422124072721137633369758989944031507695754201875682060806085526962628633560537154887236590232609620417939676013' --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":"234258043866860242924925583805262430356297212847783042919539177678292014080380945814521272739984114431650130556240359934752690230829147630120886040876536207422684035679741561124569912243446296391499347092709304999731105601959150369324193549103922497337189343963408133525848319098462094428259117291303186438492121604962804919539743309962610248420824396976146469194983114568021134213161379327054136055883045547111173306543569673803285049760745745741288145411291079598034291716055251276188401756688800886290434009327223536711364573932852742029546083317945397591933752938613386612731409710987814516346686068388220285988255540628211078185505166158687035630590274178736476642254500245312138038403499373270207237414875983720842865551155419402662195048234494969777663721921406254265475083106074609161184029914912192996991575475986610446587084562167007115548680010699770131422124072721137633369758989944031507695754201875682060806085526962628633560537154887236590232609620417939676013"},"decimal":false,"detail":2}}'